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| a gadget; dingus; thingumbob. |
| a chattering or flighty, light-headed person. |
| crustacean (krŭ-stā'shən) Pronunciation Key
Any of various widespread arthropods of the class Crustacea that live mostly in water and have a hard shell, a segmented body, and jointed appendages. Crustaceans include crabs, lobsters, shrimp, barnacles, and copepods. |
A class of arthropods with shells.
Note: Crabs, lobsters, shrimp, and crayfish are crustaceans.