Definition of cephalopod noun from the Oxford Advanced Learner's Dictionary

cephalopod

noun

ˈsefələpɒd cephalopod pronunciation American

ˈsefələpɑːd

(biology)

a type of mollusc with a combined head and body and large eyes. Cephalopods have arms and/or tentacles (= long thin parts like arms), which may have suckers (= round parts that suck) on them. Octopus and squid are cephalopods.