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n. pl. on·tog·e·nies
The development of an individual organism or a part of an organism from inception to maturity. Also called ontogenesis.

on′to·ge·net′ic (ŏn′tə-jə-nĕt′ĭk), on′to·gen′ic (-jĕn′ĭk) adj.
on′to·ge·net′i·cal·ly, on′to·gen′i·cal·ly adv.


(ɒnˈtɒdʒənɪ) or


(Biology) the entire sequence of events involved in the development of an individual organism. Compare phylogeny
ontogenic, ontogenetic adj
ˌontoˈgenically, ˌontogeˈnetically adv


(ɒnˈtɒdʒ ə ni)

also on•to•gen•e•sis

(ˌɒn təˈdʒɛn ə sɪs)

the development or developmental history of an individual organism.
Compare phylogeny.
on`to•ge•net′ic (-dʒəˈnɛt ɪk) on`to•gen′ic, adj.
on`to•ge•net′i•cal•ly, on`to•gen′i•cal•ly, adv.


the life cycle, development, or developmental history of an organism. Also ontogenesis.ontogenic, adj.ontogenic, adj.
See also: Biology
the life cycle, development, or developmental history of an organism. Also called ontogenesis. — ontogenic, adj.
See also: Life
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.ontogeny - (biology) the process of an individual organism growing organicallyontogeny - (biology) the process of an individual organism growing organically; a purely biological unfolding of events involved in an organism changing gradually from a simple to a more complex level; "he proposed an indicator of osseous development in children"
culture - (biology) the growing of microorganisms in a nutrient medium (such as gelatin or agar); "the culture of cells in a Petri dish"
biological science, biology - the science that studies living organisms
amelogenesis - the developmental process of forming tooth enamel
angiogenesis - the formation of new blood vessels
apposition - (biology) growth in the thickness of a cell wall by the deposit of successive layers of material
auxesis - growth from increase in cell size without cell division
anthesis, blossoming, florescence, flowering, inflorescence, efflorescence - the time and process of budding and unfolding of blossoms
caenogenesis, cainogenesis, cenogenesis, kainogenesis, kenogenesis - introduction during embryonic development of characters or structure not present in the earlier evolutionary history of the strain or species (such as the addition of the placenta in mammalian evolution)
cohesion - (botany) the process in some plants of parts growing together that are usually separate (such as petals)
cultivation - the process of fostering the growth of something; "the cultivation of bees for honey"
cytogenesis, cytogeny - the origin and development and variation of cells
foliation, leafing - (botany) the process of forming leaves
fructification - the bearing of fruit
gametogenesis - the development and maturation of sex cells through meiosis
gastrulation - the process in which a gastrula develops from a blastula by the inward migration of cells
germination, sprouting - the process whereby seeds or spores sprout and begin to grow
habit - the general form or mode of growth (especially of a plant or crystal); "a shrub of spreading habit"
infructescence - the fruiting stage of the inflorescence
intussusception - (biology) growth in the surface area of a cell by the deposit of new particles between existing particles in the cell wall
juvenescence - the process of growing into a youth
life cycle - the course of developmental changes in an organism from fertilized zygote to maturity when another zygote can be produced
masculinisation, masculinization, virilisation, virilization - the abnormal development of male sexual characteristics in a female (usually as the result of hormone therapies or adrenal malfunction)
morphogenesis - differentiation and growth of the structure of an organism (or a part of an organism)
myelinisation, myelinization - the development of a myelin sheath around a nerve fiber
neurogenesis - the development of nerve tissues
biological process, organic process - a process occurring in living organisms
palingenesis, recapitulation - emergence during embryonic development of various characters or structures that appeared during the evolutionary history of the strain or species
proliferation - growth by the rapid multiplication of parts
psychogenesis - a general term for the origin and development of almost any aspect of the mind
psychogenesis - the development in the life of an individual of some disorder that is caused by psychological rather than physiological factors
psychomotor development - progressive acquisition of skills involving both mental and motor activities
psychosexual development - (psychoanalysis) the process during which personality and sexual behavior mature through a series of stages: first oral stage and then anal stage and then phallic stage and then latency stage and finally genital stage
rooting - the process of putting forth roots and beginning to grow
suppression - the failure to develop some part or organ
dentition, odontiasis, teething - the eruption through the gums of baby teeth
teratogenesis - the development of defects in an embryo
vegetation - the process of growth in plants
isometry - the growth rates in different parts of a growing organism are the same


nOntogenese f
References in periodicals archive ?
From 1993 to 2002, she was at Bar Ilan University, as a Teaching Assistant and a Research Assistant where she was involved in the ontogeny of transient DRG of chick embryos.
The remainder of the book is devoted to defending detailed accounts of the centrality of mindshaping to the phylogeny and ontogeny of human cooperation, language, and mindreading.
2) To study the epigenetic programing of cross presentation during the ontogeny of mouse DC subpopulations.
KEY WORDS: gastropods, marine, ontogeny, predation, soft sediment, Lunatia heros, moonsnail, Naticidae
The purpose of this study is to evaluate the potential affinity between these two species and to describe the ontogeny of Conchoprimitia from the Sarka Formation by assessing the size, shape and convexity of the valves at different stages of growth.
The ultrastructure and ontogeny of pollen in Helleborus foetidus L.
During ontogeny the oral surface of the platform surrounding the carina gradually filled in progressively from the posterior tip towards the anterior part of the platform.
Weak magnetic fields decrease genome activity before proliferation [6], change plant ontogeny [12], configuration of epicotyl of Triticum aestivum L.
He discusses the clinical and biologic principles of treatment, including its necessity and advantages, its rationale, related controversies, the development of the dentition and dental occlusion, and examination, early detection, and treatment planning; the ontogeny, diagnosis, early detection, and treatment of nonskeletal problems like space management, incisor crowding, abnormal oral habits, abnormal frenum attachment, and eruption problems; and treatment of dentoskeletal problems like anterior and posterior crossbites, malocclusions, and open and deep bites.
To date, the embryology and ontogeny of the harvestmen have received less attention than those of the other arachnids, but this is changing for the better (Gnaspini 2007; Gnaspini & Lerche 2010).
Ontogeny of routine swimming activity and performance in Zebra danio (Teleostei: Cyprinidae).