In a speaker, the thin, semi-rigid membrane which vibrates to produce sound.
A thin opaque structure with a central aperture, used to limit the passage of light into a camera or similar device.
Any of various membranes or sheets of muscle or ligament which separate one cavity from another.
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.
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.
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.
A permeable or semipermeable membrane.
To reduce lens aperture using an optical diaphragm.
To act as a diaphragm, for example by vibrating.
An obscuration of the clearness of the tones in pronunciation.
A thin layer of tissue which is attached to or covers a mushroom.
A cover; disguise; a mask; a pretense.
A membrane connecting the margin of the pileus of a mushroom with the stalk; a velum.
Anything that partially obscures a clear view.
A covering for a person or thing; as, a caul (especially over the head)
The calyptra of mosses.
That which separates the living and the spirit world.
velum (A circular membrane round the cap of a medusa).
Something hung up or spread out to hide or protect the face, or hide an object from view; usually of gauze, crepe, or similar diaphanous material.
To dress in, or decorate with, a veil.
To conceal as with a veil.