meconidium definition

  • noun:
    • some sort of gonophore generated by hydroids of this genus Gonothyraea. This has tentacles, and usually resembles a free medusa, but remains affixed by a pedicel.
    • A Type Of gonophore generated by hydroids of genus Gonothyr├Ža. It's tentacles, and otherwise resembles a free medusa, but stays affixed by a pedicel.
    • The fixed generative medusoid of some calyptoblastic hydroids, as of the genus Gonothyrea, where the sexual elements are matured and from which the embryos tend to be released by means of ciliated planulas.
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