di‧a‧phragm /ˈdaɪəfræm/ noun [countable]
[Date: 1300-1400; Language: Late Latin; Origin: diaphragma, from Greek diaphrassein 'to make a fence across, block']

1. the muscle that is between your lungs and your stomach, and that you use when you breathe

2. a round rubber object that a woman can put inside her vagina to stop her from getting pregnant

3. technical a thin round object, especially in a telephone or loudspeaker, that is moved by sound or that moves when it produces sound

4. technical a round flat part inside a camera that controls the amount of light that enters the camera

[TahlilGaran] Dictionary of Contemporary English ▲