refrigerant

UK: /rɪˈfrɪdʒərənt/ US: /rɪˈfrɪdʒərənt/ ,(ri frij′ər ənt)

WordReference Random House Unabridged Dictionary of American English © 2026

re•frig•er•ant  (ri frij′ər ənt), adj. 

1. refrigerating;
   cooling.
2. reducing bodily heat or fever.

n. 

3. a refrigerant agent, as a drug.
4. Chemistry a liquid capable of vaporizing at a low temperature, as ammonia, used in mechanical refrigeration.
5. Chemistry a cooling substance, as ice or solid carbon dioxide, used in a refrigerator.

• Latin refrīgerant- (stem of refrīgerāns), present participle of refrīgerāre. See refrigerate, -ant
• 1590–1600

Collins Concise English Dictionary © HarperCollins Publishers::

refrigerant / rɪˈfrɪdʒərənt/ noun

1. a fluid capable of changes of phase at low temperatures: used as the working fluid of a refrigerator
2. a cooling substance, such as ice or solid carbon dioxide
3. an agent that provides a sensation of coolness or reduces fever

adjective

1. causing cooling or freezing

WordReference Random House Learner's Dictionary of American English © 2026

re•frig•er•ate /rɪˈfrɪdʒəˌreɪt/   v. [~ + object] , -at•ed, -at•ing. 

1. to make or keep cold or cool, in order to preserve or keep fresh.

re•frig•er•ant /rɪˈfrɪdʒərənt/  adj., n. 

[countable] a toxic refrigerant.

[uncountable] not enough refrigerant in the air-conditioner.

re•frig•er•a•tion /rɪˌfrɪdʒəˈreɪʃən/  n. [uncountable]

WordReference Random House Unabridged Dictionary of American English © 2026

re•frig•er•ate  (ri frij′ə rāt′), v.t., -at•ed, -at•ing. 

1. to make or keep cold or cool, as for preservation.

• Latin refrīgerātus, past participle of refrīgerāre to make cool, equivalent. to re- re- + frīgerāre to make cool, derivative of frīgus cold; see -ate¹
• 1525–35;

re•frig′er•a′tive, re•frig•er•a•to•ry  (ri frij′ər ə tôr′ē, -tōr′ē), adj.