con·​di·​tion·​ing | \ kən-ˈdi-sh(ə-)niŋ How to pronounce conditioning (audio) \

Definition of conditioning

1 : the process of training to become physically fit by a regimen of exercise, diet, and rest also : the resulting state of physical fitness
2 : a simple form of learning involving the formation, strengthening, or weakening of an association between a stimulus and a response

Keep scrolling for more

Synonyms for conditioning


activity, exercise, exertion

Visit the Thesaurus for More 

Examples of conditioning in a Sentence

the team's excellent physical conditioning With the proper conditioning, the horse will learn to trust and obey its handler.

Recent Examples on the Web

Part of this is due to her improved fitness, from working with conditioning coach Abdul Sillah, which has helped Osaka stay in points. Louisa Thomas, Vogue, "The New Number One: Naomi Osaka Is Playing to Win," 21 Mar. 2019 But the team’s strength and conditioning coach at the time, Chris Doyle, suffered little consequence. Andrew Beaton, WSJ, "Strength Coaches in College Football Have Become Strongmen," 17 Aug. 2018 Authorities are still investigating the cause of the fire, though there has been speculation about a possible short-circuit in the air conditioning unit. Diane Jeantet, The Seattle Times, "Brazil soccer club promises compensation for fire victims," 11 Feb. 2019 The inefficient, aging building needed air conditioning units in the summer and heaters in the winter, and due to its location in an historic district, pinpoint accuracy in its retrofits to meet existing building codes. Patrick Sisson, Curbed, "Can a remodeled 1920s home revolutionize green building?," 3 Dec. 2018 In 2013, Toyota recalled 800,000 vehicles after spiders crawling inside the air conditioning units caused airbags to deploy. Shannon Liao, The Verge, "Toyota recalls a million Prius vehicles citing a fire risk," 6 Sep. 2018 Many of the narco tombs are far less modest, including a Taj Mahal copy complete with air conditioning units and windows in the shape of the cross on the side of this replica of Islam’s most famous piece of architecture. Tim Macfarlan, Fox News, "The Sinaloa cemetery: How drug traffickers show off their wealth in death with gaudy tombs costing up to $500,000," 19 July 2018 The government suspended flights to and from the Shiite Muslim pilgrimage city of Najaf, where protesters at the airport smashed windows, broke chairs and air-conditioning units and marched onto the runway. Isabel Coles And, WSJ, "Iraq Struggles to Contain Protests Over Government Dysfunction," 15 July 2018 But the plastic dog house and metal water bowl are in the sun all day, and the dog has to cram himself behind the air conditioning unit to find relief from the sun and heat. Cathy M. Rosenthal, San Antonio Express-News, "When to walk your dog to avoid the heat," 13 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'conditioning.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of conditioning

1861, in the meaning defined at sense 1

Keep scrolling for more

Learn More about conditioning

Statistics for conditioning

Last Updated

3 May 2019

Look-up Popularity

Time Traveler for conditioning

The first known use of conditioning was in 1861

See more words from the same year

Keep scrolling for more

More Definitions for conditioning



English Language Learners Definition of conditioning

chiefly US : the process of becoming stronger and healthier by following a regular exercise program and diet
: the act or process of training a person or animal to do something or to behave in a certain way in a particular situation


con·​di·​tion·​ing | \ kən-ˈdish-(ə-)niŋ How to pronounce conditioning (audio) \

Medical Definition of conditioning

1 : the process of training to become physically fit by a regimen of exercise, diet, and rest Good shoes and proper conditioning are the best bets for avoiding shin splints.Current Health, November 1982 He also got serious about his physical conditioning with a regimen that includes Pilates, weights and cardio training.— Alan Shipnuck, Sports Illustrated, 9 Sept. 2002 also : the resulting state of physical fitness Triathletes maintained their aerobic conditioning while developing new skills and strengthening neglected muscles. — Marlene Adrian, Shape, September 1991
2 : a simple form of learning involving the formation, strengthening, or weakening of an association between a stimulus and a response According to the theory, learning or conditioning is the process by which behavior is systematically and lastingly changed.Harvard Mental Health Letter, December l990 … aversive conditioning to tie undesirable actions to unpleasant stimuli and thereby break habits.The New York Times Magazine, 26 Oct. 1980 — see classical conditioning, operant conditioning

Keep scrolling for more

Comments on conditioning

What made you want to look up conditioning? Please tell us where you read or heard it (including the quote, if possible).


something valued as if it were money

Get Word of the Day daily email!

Test Your Vocabulary

Time Traveler Quiz: Which Word Came First?

  • time traveler quiz which word came first
  • Which came first?
Spell It

Can you spell these 10 commonly misspelled words?

Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!