noun, plural grils·es, (especially collectively) grilse.
Origin of grilse
Examples from the Web for grilse
Delightful it is to have the fish fighting all the time as only a grilse will.
The grilse is wonderfully active and spirited, and will often give as much play as a salmon of three times his size.
It further appears, from the evidence referred to, that during these years no grilse ran up the Ness till after the month of May.
Skye and West-coast grilse are short, thick, and small-headed, and proportionally more abundant.The Ocean World:|Louis Figuier
Even after this mishap "Sarcelle" killed his grilse and lent me his rod to try for another.