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loco

 - 11 dictionary results
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lo⋅co

  [loh-koh] noun, plural -cos, verb, -coed, -co⋅ing, adjective
Use loco in a Sentence
–noun
1. locoweed.
2. Slang. an insane person; maniac.
3. Veterinary Pathology. locoism.
–verb (used with object)
4. to poison with locoweed.
5. Slang. to cause to be insane or crazy.
–adjective
6. Slang. out of one's mind; insane; crazy.
Origin:
1835–45, Americanism; < Sp: insane
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lo⋅co⋅ism

  [loh-koh-iz-uhm]
–noun Veterinary Pathology.
a disease chiefly of sheep, horses, and cattle, caused by the eating of locoweed and characterized by weakness, impaired vision, irregular behavior, and paralysis.
Also called loco, loco disease.

Origin:
1895–1900, Americanism; loco + -ism
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To loco
lo·co 1   (lō'kō)   
adj.   Slang
Mad; insane.
n.   pl. lo·cos

  1. See locoweed.

  2. See loco disease.

tr.v.   lo·coed, lo·co·ing, lo·cos

  1. To poison with locoweed.

  2. Slang To make insane; craze.


[Spanish, crazy, possibly from Arabic lawqā', foolish, feminine sing. of 'alwaq, from lāqa, to soften; see lwq in Semitic roots.]
lo·co 2   (lō'kō)   
adv.   & adj. Music
At the pitch written. Used chiefly as a direction.

[From Italian loco, from Latin locō, ablative of locus, place.]
loco disease  
n.  A disease of livestock caused by locoweed poisoning and characterized by weakness, lack of coordination, trembling, and partial paralysis. Also called loco1, locoism.
lo·co·weed   (lō'kō-wēd')   
n.  Any of several plants of the genera Oxytropis and Astragalus in the pea family, which are widespread in the western and central United States and cause severe poisoning when eaten by livestock. Also called crazyweed, loco1.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Slang Dictionary
loco [ˈloko]

  1. mod.
    crazy. (From Spanish.) : Who is that loco kid jumping up and down in the front seat?
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw Hill.
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Word Origin & History

loco 
1844, Amer.Eng., from Sp. loco (adj.) "insane," of uncertain origin, perhaps from Arabic lauqa, fem. of 'alwaq "fool, crazy person." Loco-weed (1879) was name given to species of western U.S. plants that cause cattle and horse diseases that make them stagger and act strangely.
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: 1lo·co
Pronunciation: 'lO-(")kO
Function: noun
Inflected Form: plural locos or locoes
1 : LOCOWEED
2 : LOCOISM

Main Entry: 2loco
Function: transitive verb
: to poison with locoweed

Main Entry: lo·co·ism
Pronunciation: 'lO-kO-"iz-&m
Function: noun
1 : a disease of horses, cattle, and sheep caused by chronicpoisoning with locoweeds and characterized by motor and sensory nerve damage resulting in peculiarities of gait, impairment of vision, lassitude or extreme excitement, emaciation, and ultimatelyparalysis and death if not controlled
2 : any of several intoxications of domestic animals (as selenosis) that are sometimes confused with locoweed poisoning
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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