'Involucrums' definitions:
Definition of 'Involucrums'
From: GCIDE
- Involucrum \In`vo*lu"crum\, n.; pl. L. Involucra, E. Involucrums. [L. See Involucre.] [1913 Webster]
- 1. (Bot.) See Involucre. [1913 Webster]
- 2. (Zool.) A sheath which surrounds the base of the lasso cells in the Siphonophora. [1913 Webster]