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See more synonyms for milt on Thesaurus.com
  1. the sperm-containing secretion of the testes of fishes.
  2. the testes and sperm ducts when filled with this secretion.
  3. melt2.
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Origin of milt

before 900; Middle English milte, milt, Old English milte spleen; cognate with German Milz, Middle Dutch milte milt, spleen; akin to melt2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for milt

grudge, choler, wrath, spite, melancholy, hostility, lien, malice, resentment, caprice, dislike, whim, anger, hatred, rancor, ire, depression, milt, sperm

Examples from the Web for milt

Historical Examples of milt

  • At the same time the male was expelling what in fish is known as the milt.

    The Meaning of Evolution

    Samuel Christian Schmucker

  • "I'll—I'll go home with you, if you want me to, 'stead of with Milt," she quavered.

    Prairie Folks

    Hamlin Garland

  • "Hello, Milt," said a familiar voice as he reined Marc close to the step.

    Prairie Folks

    Hamlin Garland

  • Just hold on a minute and you'll see Milt Richardson pokin' along this way.

  • Milt scowled and looked as though he wished he hadn't said that.

    Vital Ingredient

    Gerald Vance

British Dictionary definitions for milt


  1. the testis of a fish
  2. the spermatozoa and seminal fluid produced by a fish
  3. rare the spleen of certain animals, esp fowls and pigs
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  1. to fertilize (the roe of a female fish) with milt, esp artificially
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Word Origin for milt

Old English milte spleen; in the sense: fish sperm, probably from Middle Dutch milte
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

Word Origin and History for milt


Old English milte "spleen," from Proto-Germanic *miltjo- (cf. Old Frisian milte, Middle Dutch milte, Dutch milt "spleen, milt of fish," Old High German milzi, German milz, Old Norse milti). Meaning "fish sperm" is late 15c.

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Online Etymology Dictionary, © 2010 Douglas Harper

milt in Science


  1. Fish sperm, together with the milky liquid that contains them.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.