from The Century Dictionary.
- noun A sac attached to the swimming-bell or nectocalyx of certain oceanic hydrozoans, as calycophorans, into which the cœnosarc may be retracted. See cut under
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A
sacattached onto a nectocalyxor swimming bellof specific types of oceanic hydrozoans.
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