'Microseme' definitions:

Definition of 'Microseme'

From: GCIDE
  • Microseme \Mi"cro*seme\, a. [Micro- + Gr. ? sign, mark: cf. F. micros[`e]me.] (Anat.) Having the orbital index relatively small; having the orbits broad transversely; -- opposed to megaseme. [1913 Webster]