a combining form meaning “thin,” “fine,” “slight,” used in the formation of compound words: leptophyllous.
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. 2019
British Dictionary definitions for lepto-
before a vowel lept-
fine, slender, or slightleptosome
Word Origin for lepto-
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
Medicine definitions for lepto-
Slender; thin; fine:leptocyte.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.