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English to English noun
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(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 |  | Example: he proposed an indicator of osseous development in children
source: wordnet30
| 2 |
The history of the individual development of an organism; the history of the evolution of the germ; the development of an individual organism, -- in distinction from phylogeny, or evolution of the tribe. Called also henogenesis, henogeny. | | source: webster1913
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