/'respəreɪtə(r); `rɛspə,retɚ/
n [C]
1 apparatusfor giving artificial respiration over a long period 人工呼吸器
*put the patient on a respirator 给患者戴上人工呼吸器.
2 device worn over the nose and mouth to warm, filter or purify air before it is breathed 口罩; 呼吸保护罩; 防毒面具.

n[C]
a piece of equipment that pumps air in and out of someone's lungs if they are too ill or weak to breathe
= ventilator
　The baby was immediately put on a respirator.
a piece of equipment that you wear over your nose and mouth to help you breathe in a place where there is harmful gas, smoke etc
→gas mask