Definition of theca

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

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Hydractinian :: Hydractinian (n.) Any species or marine hydroids, of the genus Hydractinia and allied genera. These hydroids form, by their rootstalks, a firm, chitinous coating on shells and stones, and esp. on spiral shells occupied by hermit crabs. See Illust. of Athecata..
Athecata :: Athecata (n. pl.) A division of Hydroidea in which the zooids are naked, or not inclosed in a capsule. See Tubularian..
Basigynium :: Basigynium (n.) The pedicel on which the ovary of certain flowers, as the passion flower, is seated; a carpophore or thecaphore..
Druggist :: Druggist (n.) One who deals in drugs; especially, one who buys and sells drugs without compounding them; also, a pharmaceutist or apothecary..
Oothecae :: Oothecae (pl. ) of Oothec.
Thecata :: Thecata (n. pl.) Same as Thecophora.
Vagina :: Vagina (n.) A sheath; a theca; as, the vagina of the portal vein..
Dertrotheca :: Dertrotheca (n.) The horny covering of the end of the bill of birds.
Bibliotheca :: Bibliotheca (n.) A library.
Pharmacy :: Pharmacy (n.) The art or practice of preparing and preserving drugs, and of compounding and dispensing medicines according to prescriptions of physicians; the occupation of an apothecary or a pharmaceutical chemist..
Teleophore :: Teleophore (n.) Same as Gonotheca.
Theca :: Theca (n.) The wall forming a calicle of a coral.
Monothecal :: Monothecal (a.) Having a single loculament.
Hypotheca :: Hypotheca (n.) An obligation by which property of a debtor was made over to his creditor in security of his debt.
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..
Ootheca :: Ootheca (n.) An egg case, especially those of many kinds of mollusks, and of some insects, as the cockroach. Cf. Ooecium..
Glyptotheca :: Glyptotheca (n.) A building or room devoted to works of sculpture.
Pinacotheca :: Pinacotheca (n.) A picture gallery.
Gallipot :: Gallipot (n.) A glazed earthen pot or vessel, used by druggists and apothecaries for containing medicines, etc..
Bibliothecary :: Bibliothecary (n.) A librarian.
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