noun, plural grils·es, (especially collectively) grilse.

a young Atlantic salmon as it returns from the sea to fresh water for the first time.

Origin of grilse

1375–1425; late Middle English grills, grilles (plural) < ? Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for grilse

Historical Examples of grilse

  • The grilse rose sharply at the lure, but I “struck” too late.

  • Delightful it is to have the fish fighting all the time as only a grilse will.

  • Here was the winch, after much service, accounting for a grilse in Norway!

  • This must have a considerable effect on the future supply of grilse in the Tweed.

  • My perseverance was rewarded, and I managed to secure three grilse.

    Chats on Angling

    H. V. Hart-Davis

British Dictionary definitions for grilse


noun plural grilses or grilse

a young salmon that returns to fresh water after one winter in the sea

Word Origin for grilse

C15 grilles (plural), of uncertain origin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012