Obs. rare. [a. OF. belue, bellue, ad. L. belua, bellua great beast.] A great beast, a monster; spec. a sea-monster, a whale.
1474. Caxton, Chesse, 113. To be lyke vnto belues of the see. Ibid. (1483), Gold. Leg., 122/1. That he shold be deuoured in the see of belues and grete fysshes.
1572. Bossewell, Armorie, II. 65. A Belve Thys is a great fishe in the Sea, and is called Belua. He casteth out water at hys iowes with vapoure of good smell.