HETEROGENESIS • FREE TRANSLATOR.ORG • Definition of Heterogenesis

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noun

Heterogenesis n.

(Biol.) Spontaneous generation, so called.

(Biol.) That method of reproduction in which the successive generations differ from each other, the parent organism producing offspring different in habit and structure from itself, the original form, however, reappearing after one or more generations; opposed to homogenesis, or gamogenesis.

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Etymology of 'Heterogenesis'

Collaborative International Dictionary of English 0.48

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"Heterogenesis" Quotes from Famous Books

... archebiosis is true. I am not convinced partly I think owing to the deductive cast of much of his reasoning; and I know not why, but I never feel convinced by deduction, even in the case of H. Spencer's writings. If Dr. B.'s book had been turned upside down, and he had begun with the various cases of heterogenesis, and then gone on to organic and afterwards to saline solutions, and had then given his general arguments, I should have been, I believe, much more influenced. I suspect, however, that my chief difficulty ...

— Alfred Russel Wallace: Letters and Reminiscences, Vol. 1 (of 2) • James Marchant

... new world, and the experiments on fermentation had lent great weight to the omne vivum ex ovo doctrine. The famous Italians, Redi and Spallanzani, had led the way in their experiments, and the latter had reached the conclusion that there is no vegetable and no animal that has not its own germ. But heterogenesis became the burning question, and Pouchet in France, and Bastian in England, led the opposition to Pasteur. The many famous experiments carried conviction to the minds of scientific men, and destroyed forever the old ...

— The Evolution of Modern Medicine • William Osler

... supposed to give rise to offspring which passed through a totally different series of states from those exhibited by the parent, and did not return into the cycle of the parent; this is what ought to be called Heterogenesis, the offspring being altogether, and permanently, unlike the parent. The term Heterogenesis, however, has unfortunately been used in a different sense, and M. Milne-Edwards has therefore substituted for it Xenogenesis, which means the generation of something foreign. After discussing Redi's ...

— Discourses - Biological and Geological Essays • Thomas H. Huxley

Words linked to "Heterogenesis" : alternation of generations, xenogenesis, digenesis