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A newly hatched salmon or trout that is still attached to the yolk sac.
[French, from Old French, from Vulgar Latin *adlevīmen, alteration (influenced by Latin nūtrīmen, nourishment) of Vulgar Latin *adlevāmen, from *adlevāre, to raise (a child, an animal), alteration (influenced by Late Latin ēlevāre, to raise (a child, an animal)) of Latin allevāre, to lift up : ad-, al-, ad- + levāre, to lift, raise; see lever.]
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.
(Animals) a young fish, esp a young salmon or trout
[C19: from French, from Old French alever to rear (young), from Latin levāre to raise]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014