-
nountype genus of the Alcidae comprising solely the razorbill
Similar:
type of:
Definition that contains alca
- shell the hard largely calcareous covering of a mollusc or a brachiopod
- coral marine colonial polyp characterized by a calcareous skeleton; masses in a variety of shapes often forming reefs
- cuttlefish ten-armed oval-bodied cephalopod with narrow fins as long as the body and a large calcareous internal shell
- dentine a calcareous material harder and denser than bone that comprises the bulk of a tooth
- dentin a calcareous material harder and denser than bone that comprises the bulk of a tooth
- cuttle ten-armed oval-bodied cephalopod with narrow fins as long as the body and a large calcareous internal shell
- foram marine microorganism having a calcareous shell with openings where pseudopods protrude
- belemnite a conical calcareous fossil tapering to a point at one end and with a conical cavity at the other end containing (when unbroken) a small chambered phragmocone from the shell of any of numerous extinct cephalopods of the family Belemnitidae
- swamp red oak large round-topped deciduous tree with spreading branches having narrow falcate leaves with deeply sinuate lobes and wood similar to that of northern red oaks; New Jersey to Illinois and southward
- polyplacophore primitive elongated bilaterally symmetrical marine mollusk having a mantle covered with eight calcareous plates