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Medical Term:


Pronunciation: pro'gon-o'ma

Definition: A nodule or mass resulting from displacement of tissue when atavism occurs in embryonic development; represents a reversion to structures not normally occurring in the individuals of a species, but observed in ancestral forms of that species.

[pro- + G. gonos, offspring, + -oma, tumor]

© Copyright 2016 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.