what does the name cephalopod mean
â¢ CEPHALOPOD (noun). The noun CEPHALOPOD has 1 sense: 1. marine mollusk characterized by well-developed head and eyes and sucker-bearing tentacles. Familiarity information: CEPHALOPOD used as a noun is very rare.yponyms (each of the following is a kind of cephalopod): chambered nautilus; nautilus; pearly nautilus (cephalopod of the Indian and Pacific oceans having a spiral shell with pale pearly partitions). dibranch; dibranchiate; dibranchiate mollusk (cephalopods having two gills).