• synonyms


  1. a combining form meaning “thin,” “fine,” “slight,” used in the formation of compound words: leptophyllous.
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Also especially before a vowel, lept-.

Origin of lepto-

< Greek lepto-, combining form of leptós thin, slight, fine, literally, stripped, equivalent to lép(ein) to strip + -tos adj. suffix
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for lept

Historical Examples

  • He lept six foot in the air an' snorted like he was shunting cars.

    Wild Animals I Have Known

    Ernest Thompson Seton

  • When he came outside with a iron girdle about him, and a pizen spear, he lept in dead earnest, he did.

    Nasby in Exile

    David R. Locke

  • Henry lept at the offer, hoping that England would bear the expense of the undertaking.

  • And so he lept upon his horse, and departed all the knights and men with him.

    Chronicle and Romance (The Harvard Classics Series)

    Jean Froissart, Thomas Malory, Raphael Holinshed

  • Now when he awaked, he lept foorth of his bed, got his sword in his hand, & called his seruants to come & helpe him.

British Dictionary definitions for lept


before a vowel lept-

combining form
  1. fine, slender, or slightleptosome
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Word Origin

from Greek leptos thin, literally: peeled, from lepein to peel
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

lept in Medicine


  1. Slender; thin; fine:leptocyte.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.