KAINOGENESIS

cenogenesis, kenogenesis, caenogenesis, cainogenesis, kainogenesis

(noun) 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)

Source: WordNet® 3.1



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Word of the Day

17 May 2025

ANTHOZOAN

(noun) sessile marine coelenterates including solitary and colonial polyps; the medusoid phase is entirely suppressed


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