noun pl. lobsters -·sters or lobster -·ster

1. any of various families (esp. Nephropidae) of marine, bottom-dwelling decapods with compound eyes, long antennae, and usually the first pair of legs modified into large, powerful pincers: lobsters are greenish or dark gray in color when alive, but turn bright red when boiled
2. the flesh of these animals used as food

Etymology: ME < OE loppestre, lopustre < loppe, spider (from the external resemblance: see lob) + -estre: see -ster

intransitive verb