- tachygen
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n. [Gr. tachys, quick; gennaein, to produce]An evolutionary structure of abrupt origination.
Online Dictionary of Invertebrate Zoology. A.R. Maggenti and S.L. Gardne. 2005.
Online Dictionary of Invertebrate Zoology. A.R. Maggenti and S.L. Gardne. 2005.