pl. or grils′es
a young salmon on its first return from the sea to fresh water
Origin of grilseMiddle English grills, probably metathesis of Old French gisle, diminutive ; from gris, gray: see grisaille
nounpl. grilse grilse
A young Atlantic salmon on its first return from the sea to fresh or brackish waters.
Origin of grilseFrom Middle English grills, young salmon (pl.).
- A young salmon after its first return from the sea.