Meaning of DIAPHRAGM in English

DIAPHRAGM

n.1 a muscular partition separating the thorax from the abdomen in mammals.

2 a partition in animal and plant tissues.

3 a disc pierced by one or more holes in optical and acoustic systems etc.

4 a device for varying the effective aperture of the lens in a camera etc.

5 a thin contraceptive cap fitting over the cervix.

6 a thin sheet of material used as a partition etc.

Phrases and idioms:

diaphragm pump a pump using a flexible diaphragm in place of a piston.

Derivatives:

diaphragmatic adj.

Etymology: ME f. LL diaphragma f. Gk (as DIA-, phragma -atos f. phrasso fence in)

Oxford English vocab.      Оксфордский английский словарь.