the sperm-containing secretion of the testes of fishes.
the testes and sperm ducts when filled with this secretion.

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 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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

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

    Prairie Folks

    Hamlin Garland

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

    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



the testis of a fish
the spermatozoa and seminal fluid produced by a fish
rare the spleen of certain animals, esp fowls and pigs


to fertilize (the roe of a female fish) with milt, esp artificially

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.

Online Etymology Dictionary, © 2010 Douglas Harper

milt in Science



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