n. (pl. same or trouts) 1 any of various freshwater fish of the genus Salmo of the northern hemisphere, valued as food. 2 a similar fish of the family Salmonidae (see also salmon trout). 3 sl. derog. a woman, esp. an old or ill-tempered one (usu. old trout). troutlet n. troutling n. trouty adj.
[ OE truht f. LL tructa ]