ontogeny's Usage Examples:

The leaves of the true mosses and those of the club-mosses (Lycopodium, Selaginella) being somewhat alike in general appearance and in ontogeny, might be, and indeed have been, regarded as homologous on that ground.

for regarding the monstrous form as necessarily primitive or ancestral, nor even as a stage in the ontogeny of the organ.

Thus an abortive supernumerary finger may not cause much, if any, inconvenience to the possessor, but nevertheless it must be regarded as a type of disease, which, trivial as it may appear, has a profound meaning in phylogeny and ontogeny.

The first hypothesis is not negatived by direct evidence, for we do not actually know the ontogeny of any of the Palaeozoic insects; it is, however, rendered highly improbable by the modern views as to the nature and origin of wings in insects, and by the fact that the Endopterygota include none of the lower existing forms of insects.

The homology of members was based, in the first instance, upon similarity of development and upon similar relations to the other parts of the body, that is, upon ontogeny.

In following the discovery of the law of recapitulation among palaeontologists we have clearly stated the chief contribution of palaeontology to the science of ontogeny - namely, the correspondences and differences between FIG.

The word metamorphosis cannot, in fact, be used any longer in its original sense, for the change which it implied does not normally occur in ontogeny, and in phylogeny the idea is more accurately expressed by the term differentiation.

It was formerly assumed, and the view is still held, that the foliage-leaf was the primitive form from which all others were derived, mainly on the ground that, in ontogeny, the foliage-leaf generally precedes the sporophyll.

He was an enthusiast for evolution and saw in the growth of embryos what he called ' ontogeny recapitulates phylogeny ' .

This law, that in the stages of growth of individual development (ontogeny), an animal repeats the stages of its ancestral evolution (phylogeny) was, as we have stated, anticipated by d'Orbigny.

The most striking general change has been against seeing in the facts of ontogeny any direct evidence as to phylogeny.

Synonyms:

auxesis, virilisation, growing, growth, dentition, rooting, psychogenesis, recapitulation, cultivation, suppression, life cycle, cohesion, kainogenesis, inflorescence, culture, caenogenesis, kenogenesis, virilization, germination, masculinisation, infructescence, organic process, vegetation, psychosexual development, odontiasis, palingenesis, gametogenesis, maturation, cytogeny, habit, fructification, psychomotor development, cainogenesis, anthesis, juvenescence, ontogenesis, masculinization, efflorescence, biological process, foliation, myelinization, sprouting, teething, amelogenesis, proliferation, morphogenesis, development, gastrulation, cytogenesis, apposition, flowering, teratogenesis, cenogenesis, angiogenesis, blossoming, leafing, florescence, neurogenesis, myelinisation, intussusception,

Antonyms:

decline, devolution, cenogenesis, palingenesis, nondevelopment,