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n. pl. grilse
A young Atlantic salmon on its first return from the sea to fresh or brackish waters.
[From Middle English grills, young salmon (pl.).]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
n, pl grilses or grilse
(Zoology) a young salmon that returns to fresh water after one winter in the sea
[C15 grilles (plural), of uncertain origin]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
n., pl. grils•es, (esp. collectively) grilse.
an Atlantic salmon on its first return from the sea to fresh water.
[1375–1425; late Middle English grills, grilles (pl.), of obscure orig.]
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