air-conditioner

UK: ˈeə kənˌdɪʃənə | US: ˈer kənˌdɪʃənər

Definition

  1. n. a device that cools and dehumidifies the air in a room or building

Structure
air <atmosphere>condition <regulate>er <agent noun suffix>
Etymology

The word "air-conditioner" is a compound formed from "air" (from Old French air, Latin aer, meaning "atmosphere") and "condition" (from Latin condicio, meaning "arrangement" or "regulation"). The suffix "-er" denotes an agent or device performing the action. The term emerged in the early 20th century as mechanical climate control systems became widespread, logically combining "air" (the medium being treated) and "condition" (the process of regulating it).

Examples

  1. The office installed a new air-conditioner to combat the summer heat.

  2. Without an air-conditioner, the room becomes unbearably humid.

  3. Modern air-conditioners are designed to be energy-efficient.

  4. She adjusted the thermostat on the air-conditioner to a cooler setting.

  5. The technician came to repair the malfunctioning air-conditioner.