12-letter words containing a, e, v, u, m
- unambivalent — not ambivalent; definite; certain.
- universalism — universal character; universality.
- vacuum brake — a brake system, used on British and many overseas railways, in which the brake is held off by a vacuum on one side of the brake-operating cylinder. If the vacuum is destroyed by controlled leakage of air or a disruptive emergency, the brake is applied. It is now largely superseded by the Westinghouse brake system
- vacuum frame — a machine from which the air is extracted in order to obtain close contact between the surfaces of two materials, e.g. the film and plate during platemaking
- vacuum gauge — a device for measuring pressures below atmospheric pressure in the receiver of an air pump, in steam condensers, and the like.
- vacuum servo — a servomechanism that is operated by the lowering of pressure in the intake duct of an internal-combustion engine
- vacuum valve — vacuum tube
- value system — moral code, ethos
- vax document — A document preparation system from DEC.
- vellum paper — a creamy coloured heavy paper resembling vellum
- verumontanum — an elevation in the wall of the urethra