'Perigynium' definitions:

Definition of 'Perigynium'

From: GCIDE

Perigynium \Per`i*gyn"i*um\, n.; pl. Perigynia. [NL. See Perigynous.] (Bot.) Some unusual appendage about the pistil, as the bottle-shaped body in the sedges, and the bristles or scales in some other genera of the Sedge family, or Cyperace[ae]. [1913 Webster]