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nectocalyx |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Nectocalyx \Nec`to*ca"lyx\, n.; pl {Nectocalyces}. [NL., fr gr ? swimming + ? a calyx.] (Zo["o]l.) a The swimming bell or umbrella of a jellyfish of medusa. b 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.