from The Century Dictionary.

  • noun In zoology, a continuous external layer investing and surrounding the thecæ of certain corals.
  • noun [capitalized] In entomology, a genus of neuropterous insects, of the family Libellulidæ, or dragon-flies.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Zoöl.) A continuous and, usually, structureless layer which covers more or less of the exterior of many corals.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun microbiology, planktology The upper half of the theca of a thecate protist such as a diatom or dinoflagellate.


from Wiktionary, Creative Commons Attribution/Share-Alike License

Ancient Greek ἐπί (epi) + θήκη (thēkē, "case, box, receptacle")


    Sorry, no example sentences found.


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