Isogonism

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Isogonism \I*sog"o*nism\, n. [Iso- + Gr. ? offspring, generative
     parts.] (Zool.)
     The quality of having similar sexual zooids or gonophores and
     dissimilar hydrants; -- said of certain hydroids.
     [1913 Webster]