Involucrum
Pronunciation : In`vo*lu"crum, n.; pl. L. Involucra
Part of Speech : E.
Etymology : [L. See Involucre.]
Definition : 1. (Bot.)
Defn: See Involucre.
2. (Zo?l.)
Defn: A sheath which surrounds the base of the lasso cells in the Siphonophora.
Involucrums.
Source : Webster's Unabridged Dictionary, 1913