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Embryology   Listen
noun
Embryology  n.  (Biol.) The science which relates to the formation and development of the embryo in animals and plants; a study of the gradual development of the ovum until it reaches the adult stage.






Collaborative International Dictionary of English 0.48








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"Embryology" Quotes from Famous Books



... that there was something interesting to him in most departments of it. He read a good deal of many quite special works, and large parts of text books, such as Huxley's 'Invertebrate Anatomy,' or such a book as Balfour's 'Embryology,' where the detail, at any rate, was not specially in his own line. And in the case of elaborate books of the monograph type, though he did not make a study of them, yet he felt ...
— The Life and Letters of Charles Darwin, Volume I • Francis Darwin

... part by the modern school of laboratory naturalists, to whom the peculiarities and distinctions of species, as such, their distribution and their affinities, have little interest as compared with the problems of histology and embryology, of physiology and morphology. Their work in these departments is of the greatest interest and of the highest importance, but it is not the kind of work which, by itself, enables one to form a sound judgment on the questions involved in the action ...
— Darwinism (1889) • Alfred Russel Wallace

... origin in a primary nucleus which, as soon as it is established, operates as a centre of attraction for the formation of all those physical organs of which the perfect individual is composed. The science of embryology shows that this rule holds good without exception throughout the whole range of the animal world, including man; and botany shows the same principle at work throughout the vegetable world. All branches of physical science ...
— The Edinburgh Lectures on Mental Science • Thomas Troward

... This principle means that the history of the species is repeated in the history of the individual; a truth substantiated in other spheres; in philology for example. The psychology of the child is of the same significance for general psychology as embryology is for anatomy. On the other hand, the description of savage peoples, of peoples in a natural condition, such as we find in Spencer's Descriptive Sociology or Weitz's Anthropology is extremely instructive for a right conception of the psychology ...
— The Education of the Child • Ellen Key

... discovery was as follows. My advanced investigations of the brain, between 1835 and 1841, had added so much to the incomplete and inaccurate discoveries of Gall, and had brought cerebral science into so much closer and more accurate relation with cerebral anatomy and embryology, as illustrated by Tiedemann, that I became profoundly aware of the position in which I found myself, as an explorer, possessed of knowledge previously quite unknown, and yet, at the same time, however true, not strictly demonstrable, since none ...
— Buchanan's Journal of Man, September 1887 - Volume 1, Number 8 • Various

... intimately on those two questions that ever incite the naturalist to the most laborious and untiring diligence—what is life and its origin? The subjects of the alternation of generations, or parthenogenesis, of embryology and biology, owe their great advance, in large degree, to the study of such animals as are parasitic, and the question whether the origin of species be due to creation by the action of secondary laws or not, will be largely met and ...
— Our Common Insects - A Popular Account of the Insects of Our Fields, Forests, - Gardens and Houses • Alpheus Spring Packard

... Type Morphology Embryology Attempt to explain the facts of embryology On the graduated complexity in each great class Modification by selection of the forms of immature animals Importance of embryology in classification Order in time in which the ...
— The Foundations of the Origin of Species - Two Essays written in 1842 and 1844 • Charles Darwin

... philosophers, by the Buddhists of the pre-Christian era and by the Greek philosophers in the West, still it has received a new impetus and has grown with new strength since the introduction of the Darwinian theory of the evolution of species. Along with the latest discoveries in physiology, biology, embryology and other branches of modern science, the popular simple meaning of heredity—that the offspring not only resemble their parents among animals as well as among men, but inherit all the individual peculiarities, life and character of their parents—has taken the shape of the ...
— Reincarnation • Swami Abhedananda

... know much; and our classifications, if not satisfactory to all, are at least eminently useful. But when one turns to the morphological sciences of anatomy, histology, embryology, and pathology, one discovers great gaps, where knowledge might reasonably be expected. Even gross anatomy has much to gain from the careful, systematic examination of these organisms. With still greater force this statement applies to the studies of finer structural ...
— The Mental Life of Monkeys and Apes - A Study of Ideational Behavior • Robert M. Yerkes

... the length of beak, the swollen skin over the rather open nostrils, the gape of the mouth, and the size of the feet, are the same in both; although these parts afterwards become widely different. We thus see that embryology (as the comparison of very young animals {146} may perhaps be called) comes into play in the classification of domestic varieties, as with species in a state ...
— The Variation of Animals and Plants Under Domestication, Vol. I. • Charles Darwin

... are by no means despicable. We shall know now when that extraordinary bird the Emperor penguin lays its eggs, and under what conditions; but even if our information remains meagre concerning its embryology, our party has shown the nature of the conditions which exist on the Great Barrier in winter. Hitherto we have only imagined their severity; now we have proof, and a positive light is thrown on the local climatology ...
— Scott's Last Expedition Volume I • Captain R. F. Scott

... vicarages, into all the studies and quiet places that had been the fastnesses of conviction and our ideals, and denied, with all the power of evidence it had been accumulating for so long, and so obscurely and inaggressively, with fossils and strata, with embryology and comparative anatomy, the doctrine of the historical Fall and all the current scheme of orthodoxy that was based on that! What a quickening shock it must have been in countless thousands of educated lives! And my father ...
— The Passionate Friends • Herbert George Wells

... lamentably deficient in embryologists; and it was only in the course of the first thirty years of the present century, that Prevost and Dumas in France, and, later on, Doellinger, Pander, Von Baer, Rathke, and Remak in Germany, founded modern embryology; while, at the same time, they proved the utter incompatibility of the hypothesis of evolution, as formulated by Bonnet and ...
— Darwiniana • Thomas Henry Huxley

... most patient, learned, and acute investigator of embryology now living, finds in that science (upon which, in truth, rests the final settlement of the so-called development theory) 'no single fact to justify the assumption that the laws of development, now known to be so precise and definite for every animal, have ever been less so, or have ever ...
— Continental Monthly, Volume 5, Issue 4 • Various

... harmful. Any marriage between persons who have the same faults of inheritance causes the offspring to accumulate faults and to degenerate. Close kinship creates a probable danger that faults will be accumulated. This is a logical deduction. Embryology, at present, seems to teach that there is a combination and extrusion of germ units of such a kind that the physiological process conforms only in a measure to this logical deduction, and the historical-statistical ...
— Folkways - A Study of the Sociological Importance of Usages, Manners, Customs, Mores, and Morals • William Graham Sumner

... credulous the ghosts of their departed relatives. Besides his astrological works he wrote one serious treatise, the Compendium Anatomicum nova methodo institutum (1695), in which he defends Harvey's theories of embryology. ...
— A Budget of Paradoxes, Volume I (of II) • Augustus De Morgan

... in the following chapters to consider whether the unconsciousness, or quasi-unconsciousness, with which we perform certain acquired actions, would seem to throw any light upon Embryology and inherited instincts, and otherwise to follow the train of thought which the class of actions above-mentioned would suggest; more especially in so far as they appear to bear upon the origin of species and the continuation of life by successive generations, ...
— Life and Habit • Samuel Butler

... the groups is common to those which we know have been evolved, and to those supposed in the volume before us to have been evolved. There is the further significant fact that divergent groups are allied through their lowest rather than their highest members. Of the "Arguments from Embryology," the first is that, when developing embryos are traced from their common starting-point, and their divergencies and re-divergencies are symbolized by a genealogical tree, there is manifest a general parallelism ...
— Beacon Lights of History, Volume XIV • John Lord

... conception of the opening future may be increasingly defined, since all these apparently predicted phases are already incipient among us, and are thus really matters of observed fact, of social embryology let us say; in short, ...
— Civics: as Applied Sociology • Patrick Geddes

... have in the Emperor penguin the nearest approach to a primitive form not only of a penguin but of a bird makes the future working out of its embryology a matter of the greatest possible importance. It was a great disappointment to us that although we discovered their breeding-ground, and although we were able to bring home a number of deserted eggs and chicks, we were not able to procure a series ...
— The Worst Journey in the World, Volumes 1 and 2 - Antarctic 1910-1913 • Apsley Cherry-Garrard

... cast up a good- sized living specimen of that extraordinary fish-lizard, the great menobranchus, popularly known as the hell-bender from its extreme ugliness. Owing to the immense size of its spermatozoa, it has rendered great aid to embryology, a science which, when understood au fond, will bring about great changes in the human race. We were taken out in a steamboat to the end of the great aqueduct, which was, when built, pronounced, I think by ...
— Memoirs • Charles Godfrey Leland

... its issues are by necessity to a certain extent practical philosophers, why should we meekly surrender the stuff of speculation to technical disputants? Of course, there are certain regions of experiment that must be left to specialists, and a scientist who devoted himself to embryology might justly complain of a man who aired views on the subject without adequate study. But as far as life goes, any thoughtful and intelligent man who has lived and reflected is in a sense a specialist. In life and conduct, in morality and religion, we are all of us making experiments all day long, ...
— The Silent Isle • Arthur Christopher Benson

... since 1870, and nearly all of it since 1815, the first thing which strikes us now is the frequency and delicacy of its response to contemporary thoughts and aspirations. A few of the greatest men have recognized this at the time. I quote from Karl Ernst von Baer, the founder of comparative embryology, and in great matters the master of men as different as Huxley, Spencer, and Francis Balfour. He died in 1876, when political anthropology was still young; but in his great book on Man he 'appeals to the experience ...
— The Unity of Civilization • Various

... delight is to make the vulgar gape in awe. He therefore had no science, that is, no knowledge—outside his profession—but only what is called learning, though tommyrot would be a fitter name for it. He had only the most meager acquaintance with that great fundamental of a sound and sane education, embryology. He knew nothing of what science had already done to destroy all the still current notions about the mystery of life and birth. He still laughed, as at a clever bit of legerdemain, when Hallowell showed him how far science had progressed toward mastery of the life of ...
— The Grain Of Dust - A Novel • David Graham Phillips

... their effect from material ones; and, for another, these material possibilities unfold material facts, secrets of Nature, that go to enrich the treasury of science, and quicken the moral sense. Of such material facts are the discoveries in embryology and kindred branches. They reveal the grave fact, previously reckoned with in the matter of the breeding of domestic animals, that the act of impregnation is an act of inoculation. This fact, absolutely material, furnishes a post-discovered ...
— Woman under socialism • August Bebel

... force to animals as yet unborn, which the naturalist will sometimes find during work, and will wish to preserve. These foetal specimens, however, let it be remembered, are of the greatest consequence in the study of embryology, and should always be preserved intact in a fluid medium of some kind. Sometimes the operator comes across a foetus of some rarity, which, if not large, can be preserved in a small "preparation" jar, filled with best rectified spirits ...
— Practical Taxidermy • Montagu Browne

... conditions, this minute and apparently insignificant particle of living matter becomes animated by a new and mysterious activity. The germinal vesicle and spot cease to be discernible (their precise fate being one of the yet unsolved problems of embryology), but the yelk becomes circumferentially indented, as if an invisible knife had been drawn round it, and thus appears divided into two ...
— On the Relations of Man to the Lower Animals • Thomas H. Huxley

... his colleagues. His first large work on evolution, "General Morphology," was published in 1866. He has since published forty-two distinct works. He is not only a master of zoology, but has a good command of botany and embryology. Haeckel's "Evolution of Man" (Anthropogenie), is generally accepted as being his most important production. Published in 1874, at a time when the theory of natural evolution had few supporters in Germany, the work was hailed with a storm of controversy, ...
— The World's Greatest Books - Volume 15 - Science • Various



Words linked to "Embryology" :   eyecup, germ layer, biological science, embryologic, regulation, biology, teratology, segmentation, embryonic, implantation, cleavage



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