Found 2 items, similar to swimming crab.
English → English (WordNet) Definition: swimming crab swimming crab n : marine crab with some legs flattened and fringed for swimming
English → English (gcide) Definition: Swimming crab Swimming \Swim"ming\, a. 1. That swims; capable of swimming; adapted to, or used in, swimming; as, a swimming bird; a swimming motion. [1913 Webster] 2. Suffused with moisture; as, swimming eyes. [1913 Webster] Swimming bell (Zo["o]l.), a nectocalyx. See Illust. under Siphonophora. Swimming crab (Zo["o]l.), any one of numerous species of marine crabs, as those of the family Protunid[ae], which have some of the joints of one or more pairs of legs flattened so as to serve as fins. [1913 Webster]