from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A cavity in the primary nectocalyx of certain Siphonophora.
from the GNU version of the Collaborative International Dictionary of English
- n. A cavity in the primary nectocalyx of certain Siphonophora. See Illust. under nectocalyx.
from The Century Dictionary and Cyclopedia
- n. The inflated stem or body of some siphonophorans, or oceanic hydrozoans, serving as a pneumatocyst or air-sac to float or buoy these organisms, as in the case of the Portuguese man-of-war. See Calycophora, Siphonophora, and cuts under Diphyidæ and Physalia.
Ancient Greek (Wiktionary)
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