[ lem-uhn ]
/ ˈlɛm ən /
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the yellowish, acid fruit of a subtropical citrus tree, Citrus limon.
the tree itself.
Informal. a person or thing that proves to be defective, imperfect, or unsatisfactory; dud: His car turned out to be a lemon.


made of or with lemon.
having the color, taste, or odor of lemon.



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Origin of lemon

1350–1400; 1905–10 for def. 4; <Medieval Latin lemōnium; replacing Middle English lymon<Medieval Latin līmō, (stem līmōn-) <Persian līmū, līmun


lem·on·ish, adjectivelem·on·like, lem·on·y, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for lemon

British Dictionary definitions for lemon

/ (ˈlɛmən) /


a small Asian evergreen tree, Citrus limon, widely cultivated in warm and tropical regions, having pale green glossy leaves and edible fruitsRelated adjectives: citric, citrine, citrous
  1. the yellow oval fruit of this tree, having juicy acidic flesh rich in vitamin C
  2. (as modifier)a lemon jelly
Also called: lemon yellow
  1. a greenish-yellow or strong yellow colour
  2. (as adjective)lemon wallpaper
a distinctive tart flavour made from or in imitation of the lemon
slang a person or thing considered to be useless or defective

Derived forms of lemon

lemonish, adjectivelemon-like, adjective

Word Origin for lemon

C14: from Medieval Latin lemōn-, from Arabic laymūn
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