'Calcispongiae' definitions:
Definition of 'Calcispongiae'
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Calcispongiae \Cal`ci*spon"gi*[ae]\, n. pl. [NL., fr. L. calx,
calcis, lime + spongia a sponge.] (Zool.)
An order of marine sponges, containing calcareous spicules.
See Porifera.
[1913 Webster]
