'Peristoma' definitions:

Definition of 'Peristoma'

From: GCIDE
  • Peristoma \Pe*ris"to*ma\ (p[-e]*r[i^]s"t[-o]*m[.a]), n.; pl. Peristomata (p[e^]r`[i^]*st[o^]m"[.a]*t[.a]). [NL.] Same as Peristome. [1913 Webster]