- diaphragm
- diaphragm [dī′ə fram΄]n.[ME diafragma < LL diaphragma < Gr < dia-, through + phragma, a fence < phrassein, to enclose]1. the partition of muscles and tendons between the chest cavity and the abdominal cavity; midriff: see LUNG2.a) any membrane or partition that separates one thing from anotherb) a dividing wall at the node of a plant stem3. a device to regulate the amount of light entering the lens of a camera, microscope, etc.☆ 4. a small, flexible contraceptive device of rubber or plastic that fits over the cervix of the uterus5. a thin, flexible disk or cone that vibrates in response to sound waves to produce electrical signals, as in a microphone, or that vibrates in response to electrical signals to produce sound waves, as in a speakerdiaphragmatic [dī′əfrag mat′ik]adj.diaphragmaticallyadv.
English World dictionary. V. Neufeldt. 2014.