Dictionary![]() ![]() phe•no•typePronunciation: (fē'nu-tīp"), [key] —n. Genetics. 1. the observable constitution of an organism. 2. the appearance of an organism resulting from the interaction of the genotype and the environment. Cf. genotype. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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