ten-armed oval-bodied cephalopod with narrow fins as long as the body and a large calcareous internal shell
source: WordNet 3.0
A knife.
source: Webster 1913
A cephalopod of the genus Sepia, having an internal shell, large eyes, and ten arms furnished with denticulated suckers, by means of which it secures its prey. The name is sometimes applied to dibranchiate cephalopods generally.
