Definition of theca

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

Lern More About Theca

Ruffle :: Ruffle (v. t. & i.) The connected series of large egg capsules, or oothecae, of any one of several species of American marine gastropods of the genus Fulgur. See Ootheca..
Gallipot :: Gallipot (n.) A glazed earthen pot or vessel, used by druggists and apothecaries for containing medicines, etc..
Theca :: Theca (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..
Teleophore :: Teleophore (n.) Same as Gonotheca.
Gymnotoka :: Gymnotoka (n. pl.) The Athecata.
Ovicapsule :: Ovicapsule (n.) Same as Ootheca.
Vaginal :: Vaginal (a.) Of or pertaining to a vagina; resembling a vagina, or sheath; thecal; as, a vaginal synovial membrane; the vaginal process of the temporal bone..
Gnathothecae :: GnathothecAe (pl. ) of Gnathothec.
Sertularian :: Sertularian (n.) Any species of Sertularia, or of Sertularidae, a family of hydroids having branched chitinous stems and simple sessile hydrothecae. Also used adjectively..
Theca :: Theca (n.) The chitinous cup which protects the hydranths of certain hydroids.
Dram :: Dram (n.) A weight; in Apothecaries' weight, one eighth part of an ounce, or sixty grains; in Avoirdupois weight, one sixteenth part of an ounce, or 27.34375 grains..
Connective :: Connective (n.) That part of an anther which connects its thecae, lobes, or cells..
Pharmaceutist :: Pharmaceutist (n.) One skilled in pharmacy; a druggist. See the Note under Apothecary.
Mesotheca :: Mesotheca (n.) The middle layer of the gonophore in the Hydrozoa.
Gonophore :: Gonophore (n.) A sexual zooid produced as a medusoid bud upon a hydroid, sometimes becoming a free hydromedusa, sometimes remaining attached. See Hydroidea, and Illusts. of Athecata, Campanularian, and Gonosome..
Vagina :: Vagina (n.) A sheath; a theca; as, the vagina of the portal vein..
Oothecae :: Oothecae (pl. ) of Oothec.
Apothecaries :: Apothecaries (pl. ) of Apothecar.
Rhamphothecae :: Rhamphothecae (pl. ) of Rhamphothec.
Apothecary :: Apothecary (n.) One who prepares and sells drugs or compounds for medicinal purposes.
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