English Dictionary

diaphragm

/ˈdaɪəˌfɹæm/

noun

(anatomy) 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.

The diaphragm is a dome-shaped muscle that separates the chest cavity from the abdominal cavity.

意味（1）

(anatomy) 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.

意味（2）

(anatomy) Any of various membranes or sheets of muscle or ligament which separate one cavity from another.

意味（3）

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

意味（4）

(mechanics) 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.

意味（5）

(acoustics) In a speaker, the thin, semi-rigid membrane which vibrates to produce sound.

意味（6）

(optics, photography) A thin opaque structure with a central aperture, used to limit the passage of light into a camera or similar device.

意味（7）

(chemistry) A permeable or semipermeable membrane.

The mass of liquid transported through a porous diaphragm in a given time is directly proportional to the current.

意味（8）

(construction) A floor slab, metal wall panel, roof panel or the like, having a sufficiently large in-plane shear stiffness and sufficient strength to transmit horizontal forces to resisting systems.