Nec`to*ca"lyx (?), n.; pl. Nectocalyces (#). [NL., fr. gr. swimming + a calyx.] Zool. (a)

The swimming bell or umbrella of a jellyfish of medusa.


One of the zooids of certain Siphonophora, having somewhat the form, and the essential structure, of the bell of a jellyfish, and acting as a swimming organ.


© Webster 1913.

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