Conditioner

/kənˈdɪʃənər/

Meaning & Definition

noun
A substance or preparation used to improve the quality or performance of something, especially a product used for hair or fabric care.
After shampooing, she applied a rich conditioner to her hair to keep it moisturized.
A device that treats or regulates a condition, such as temperature or humidity, in a space.
The air conditioner keeps the room cool during the hot summer months.
A person or thing that brings about a certain condition.
The coach acted as a conditioner for the athlete, ensuring they were in peak physical shape for the competition.

Etymology

From the word 'condition', with the suffix '-er' denoting an agent.

Common Phrases and Expressions

leave-in conditioner
A type of conditioner intended to be left in the hair without rinsing, providing ongoing moisture.
hair conditioner
Refers specifically to conditioners meant for hair care.
air conditioner
A system or device used to cool and dehumidify indoor air.

Related Words

shampoo
A cleansing product used to wash hair, often used in conjunction with conditioner.
moisturizer
A product that hydrates the skin, similar in purpose to hair conditioner but for skin.
emollient
A substance that softens and smooths, often used in skincare.

Slang Meanings

A product used to get shiny, smooth hair.
I just added some conditioner to my routine, and my hair looks so good now!
Cool air system in a house.
It's so hot outside; thank goodness we have the conditioner running!