A group of Coelenterata, including the Medusae or jellyfishes, and hydroids; so called from the stinging power they possess. Sometimes called sea nettles.

Origin: NL, from Gr, a nettle.

(01 Mar 1998)

acajou, -acal, acalculia, acalculous cholecystitis < Prev | Next > acalephan, acalephoid, acalysinous

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