Englishfor English speakers
earphone
—
noun
electro-acoustic transducer for converting electric signals into sounds; it is held over or inserted into the ear
it was not the typing but the earphones that she disliked
diaphragm
—
noun
a mechanical device in a camera that controls size of aperture of the lens
the new cameras adjust the diaphragm automatically
—
noun
(anatomy) a muscular partition separating the abdominal and thoracic cavities; functions in respiration
—
noun
electro-acoustic transducer that vibrates to receive or produce sound waves
—
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