a pliable sheet of tissue that covers or lines or connects the organs or cells of animals or plants | a mechanical device in a camera that controls size of aperture of the lens |
| electro-acoustic transducer that vibrates to receive or produce sound waves |
| 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 |
| (anatomy) a muscular partition separating the abdominal and thoracic cavities; functions in respiration |