Dictionary Check: diaphragm

"diaphragm" is a valid word!

Scrabble 18 points
Words with Friends 20 points

Definition

noun

a mechanical device in a camera that controls size of aperture of the lens

Example: "the new cameras adjust the diaphragm automatically"
Synonyms:
noun

(anatomy) a muscular partition separating the abdominal and thoracic cavities; functions in respiration

Synonyms:
noun

a contraceptive device consisting of a flexible dome-shaped cup made of rubber or plastic; it is filled with spermicide and fitted over the uterine cervix

noun

electro-acoustic transducer that vibrates to receive or produce sound waves

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