Tegmen
Pronunciation : Teg"men
Part of Speech : n.;
Etymology : [L., fr. tegere, tectum, to cover.]
Definition : 1. A tegument or covering.
2. (Bot.)
Defn: The inner layer of the coating of a seed, usually thin and delicate; the endopleura.
3. (Zo?l.)
Defn: One of the elytra of an insect, especially of certain Orthoptera.
4. pl. (Zo?l.)
Defn: Same as Tectrices.
pl. Tegmina.
Source : Webster's Unabridged Dictionary, 1913