ontogenesis

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on·to·gen·e·sis / ˌäntəˈjenəsis/ • n. Biol. the development of an individual organism or anatomical or behavioral feature from the earliest stage to maturity. Compare with phylogenesis.DERIVATIVES: on·to·ge·net·ic / -jəˈnetik/ adj.on·to·ge·net·i·cal·ly / -jəˈnetik(ə)lē/ adv.

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