n. [Gr. akros, tip; kystis, sac]
(CNIDARIA: Hydrozoa)
A chitinous sac containing a planula in which development is completed; may protrude from the gonangium.

Online Dictionary of Invertebrate Zoology. . 2005.

Look at other dictionaries:

  • acrocyst — ac·ro·cyst …   English syllables

  • acrocyst — ˈakrōˌsist noun ( s) Etymology: acr + cyst : a chitinous cystlike expansion of the gonophore at the top of the gonotheca in certain hydroids …   Useful english dictionary

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