Grilse
Origin
From the earlier form gilse, from Welsh gleisiad, from glas ("blue").
Full definition of grilse
Noun
grilse
(plural grilses)- A young salmon after its first return from the sea.
- 1961, Albert Upton, Design for Thinking: A First Book in Semantics, Stanford University Press, page 4:In our own tongue salmon are fry as babies, parr as children, smolt as adolescents, and grilse as adults.