THECA

theca

(noun) outer sheath of the pupa of certain insects

theca, sac

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

Source: WordNet® 3.1

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Etymology

Noun

theca (plural thecas or thecae)

(biology) Any external case or sheath.

(botany) The pollen-producing organ usually found in pairs and forming an anther.

(medicine) The twin layers of cells surrounding the basal lamina of an ovarian follicle.

(microbiology, planktology) The membrane complex enveloping the cells of certain plankton including diatoms and dinoflagellates.

(coral science) The calcareous wall of a corallite, the exoskeleton of a coral polyp.

(Christianity) A case for the corporal cloth used in the Eucharist.

Anagrams

• 'tache, Tache, Taché, Teach, Tâche, chate, cheat, he-cat, tache, teach

Source: Wiktionary

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The"ca, n.; pl. Thecæ. Etym: [L., fr. Gr. Tick a cover.]

1. 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.

2. (Zoöl.) (a) The chitinous cup which protects the hydranths of certain hydroids. (b) The more or less cuplike calicle of a coral. (c) The wall forming a calicle of a coral.

Source: Webster’s Unabridged Dictionary 1913 Edition

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