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Webster 1913 Edition

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Noun.

[NL., dim. of Gr. [GREEK] a poppy. So called in allusion to the shape of the seed capsules of the poppy.]

(Zool.)

A kind of gonophore produced by hydroids of the genus

Gonothyraea

. It has tentacles, and otherwise resembles a free medusa, but remains attached by a pedicel.

meconidium ‎(plural meconidia)

(zoology) A kind of gonophore produced by hydroids of the genus Gonothyraea (Campanulariidae). It has tentacles, and otherwise resembles a free medusa, but remains attached by a pedicel.