meconidium

English

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English Wikipedia has an article on:

Campanulariidae

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Wikispecies has information on:

Campanulariidae

Wikispecies

Etymology

From Ancient Greek μήκων (mḗkōn, “poppy”, due to a resemblance to poppy-capsules) + -idium.

Noun

meconidium (plural meconidia)

(zoology) A kind of gonophore produced by hydroids of the genus Gonothyraea (Campanulariidae), having tentacles, and otherwise resembling a free medusa, but remaining attached by a pedicel.

Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for “meconidium”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.)