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conditioner

[kuh n-dish-uh-ner]
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noun
  1. a person or thing that conditions.
  2. something added to a substance to increase its usability, as a water softener.
  3. a cream or liquid preparation applied to the hair or skin, especially for its emollient qualities.
  4. a trainer of athletes.
  5. an air conditioner.
  6. Textiles. a person who conditions fibers or fabrics.
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Origin of conditioner

First recorded in 1590–1600; condition + -er1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for conditioner

cordial, pick-me-up, drug, restorative, pickup, fillip, boost, stimulant, bracer, refresher, strengthener, conditioner, analeptic, adjective, adverb, transformer, roborant, alterant, alterer

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British Dictionary definitions for conditioner

conditioner

noun
  1. a person or thing that conditions
  2. a substance, esp a cosmetic, applied to something to improve its conditionhair conditioner
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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 conditioner

n.

c.1600, "a bargainer," agent noun from condition (v.). Meaning "an agent that brings something into good condition" is from 1888; since c.1960 usually in reference to hair care products. For about 20 years before that, it often was short for air conditioner.

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Online Etymology Dictionary, © 2010 Douglas Harper