theca

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See also: -theca

English[edit]

Strawberry anther with parallel thecae

Etymology[edit]

From New Latin, from Latin theca, from Ancient Greek θήκη (thḗkē, a case, box, receptacle), from τίθημι (títhēmi, put, set, place). Doublet of tay.

Noun[edit]

theca (plural thecas or thecae)

  1. (biology) Any external case or sheath.
  2. (botany) The pollen producing organ usually found in pairs and forming an anther.
  3. (medicine) The twin layers of cells surrounding the basal lamina of an ovarian follicle
  4. (microbiology, planktology) The membrane complex enveloping the cells of certain plankton including diatoms and dinoflagellates
  5. (marine biology) The calcareous wall of a corallite, the exoskeleton of a coral polyp
  6. (Christianity) A case for the corporal cloth used in the Eucharist.
Theca (1) of a dinoflagellate

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Latin[edit]

Etymology[edit]

From Ancient Greek θήκη (thḗkē, a case, box, receptacle), from τίθημι (títhēmi, put, set, place).

Pronunciation[edit]

Noun[edit]

thēca f (genitive thēcae); first declension

  1. a case, envelope, sheath

Inflection[edit]

First declension.

Case Singular Plural
nominative thēca thēcae
genitive thēcae thēcārum
dative thēcae thēcīs
accusative thēcam thēcās
ablative thēcā thēcīs
vocative thēca thēcae

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