'Sea crawfish' definitions:

Definition of 'sea crawfish'

From: WordNet
noun
Large edible marine crustacean having a spiny carapace but lacking the large pincers of true lobsters [syn: spiny lobster, langouste, rock lobster, crawfish, crayfish, sea crawfish]

Definition of 'Sea crawfish'

From: GCIDE
  • Sea crawfish \Sea" craw"fish`\ Sea crayfish \Sea" cray"fish`\ (Zool.) Any crustacean of the genus Palinurus and allied genera, as the European spiny lobster (Palinurus vulgaris), which is much used as an article of food. See Lobster. [1913 Webster]