First Known Use: circa 1666
Dictionary
theca
noun the·ca \ˈthē-kə\
plural the·cae \ˈthē-ˌsē, -ˌkē\
Definition of THECA
: an enveloping sheath or case of an animal or animal part
— the·cal \ˈthē-kəl\ adjective
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Origin of THECA
New Latin, from Greek thēkē case — more at tick
Medical Dictionary
theca
noun the·ca \ˈthē-kə\
plural the·cae \ˈthē-ˌsē, -ˌkē\
Medical Definition of THECA
: an enveloping case or sheath (as the theca folliculi) of an anatomical part
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