noun
                                                a mechanical device in a camera that controls size of aperture of the lens
                                                                                                Synonyms
                                                
                                                
                                                                                                Examples
                                                
                                                                                                        - the new cameras adjust the diaphragm automatically
 
                                                                                        
                                                noun
                                                (anatomy) a muscular partition separating the abdominal and thoracic cavities
                                                                                                Synonyms
                                                
                                                
                                                                                                Examples
                                                
                                                                                                        - functions in respiration
 
                                                                                        
                                                noun
                                                a contraceptive device consisting of a flexible dome-shaped cup made of rubber or plastic
                                                                                                Synonyms
                                                
                                                
                                                                                                Examples
                                                
                                                                                                        - it is filled with spermicide and fitted over the uterine cervix
 
                                                                                        
                                                noun
                                                electro-acoustic transducer that vibrates to receive or produce sound waves