A closed space with tired air inside it, and a machine whose only job is to swap that air: fresh air in, stale air out, again and again. The space may be a bathroom, an office, or a pair of lungs.
From the word’s history
From ventilate plus -or, the thing that ventilates; Latin already had ventilator.
由 ventilate（使空氣流通）加上 -or（做這件事的東西）組成；拉丁文裡本來就有 ventilator 這個字。
Wiktionary (kaikki extract, source_ref kaikki:3f6f69a190036ae4:861611045:27549): 'From ventilate + -or; cf. Latin ventilator.'
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原始詞典資料4 筆記錄
以下是外部詞典記錄的用法，摘錄並精簡格式，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
ventilatornoun/ˈvɛntɪleɪtə/
- 1
A device that circulates fresh air and expels stale or noxious air.
- 2
medicinesciencesA machine that moves breathable air into and out of the lungs of a patient who is unable to breathe sufficiently.
- Near-synonym: respirator
- 3
Some behaviour or happening that relieves a tense atmosphere or situation.
- A lover's quarrel is made up of jealousies, doubts, hopes, fears, and all sorts of fantastic fancies: a matrimonial dispute, on the contrary, is composed of familiar and ordinary matter, a sort of ventilator to the temper!
- 4
obsoleteslangA play or an actor so bad as to empty the theater.
摘錄自 英文維基詞典 English Wiktionary，已精簡格式；依 CC BY-SA 4.0 授權使用，改動後的內容同樣以此授權提供。