Theca

[θi:kә]

Definition

(noun.) outer sheath of the pupa of certain insects.

(noun.) a case or sheath especially a pollen sac or moss capsule.

Editor: Terence--From WordNet

Definition

(n.) A sheath; a case; as, the theca, or cell, of an anther; the theca, or spore case, of a fungus; the theca of the spinal cord.

(n.) The chitinous cup which protects the hydranths of certain hydroids.

(n.) The more or less cuplike calicle of a coral.

(n.) The wall forming a calicle of a coral.

Checker: Sumner

Definition

n. a sheath case or sac a spore-case: a case for a corporal-cloth:—pl. Thē′c?/span>.—adjs. Thē′cal Thē′cate.—ns. Thē′caphore a receptacle bearing thec? Thē′caspore a spore produced in a theca.—adjs. Thecaspō′rous; Thecif′erous bearing thec? Thē′ciform thecal in use or form.—n. Thē′cium the part of the apothecium containing the organs of the fruit in lichens.

Edited by Adela