| 1. | a system or process for controlling the temperature, humidity, and sometimes the purity of the air in an interior, as of an office, theater, laboratory, or house, esp. one capable of cooling. |
| 2. | an air-conditioning system or unit. |
[air-kuhn-dish-uhn] 
| 1. | to furnish with an air-conditioning system. |
| 2. | to treat (air) with such a system. |
| air-con·di·tion (âr'kən-dĭsh'ən) tr.v. air-con·di·tioned, air-con·di·tion·ing, air-con·di·tions To subject to, provide with, or ventilate by air conditioning. |