How to Spell diaphragm

diaphragm - noun

• In mammals, a sheet of muscle separating the thorax from the abdomen, contracted and relaxed in respiration to draw air into and expel air from the lungs; also called thoracic diaphragm.

• Any of various membranes or sheets of muscle or ligament which separate one cavity from another.

• A contraceptive device consisting of a flexible cup, used to cover the cervix during intercourse.

• A flexible membrane separating two chambers and fixed around its periphery that distends into one or other chamber as the difference in the pressure in the chambers varies.