12-letter words containing c, u, m, a
- unmechanical — not having any skill or knowledge in relation to machines or machinery
- unmethodical — characterized by lack of method or disorderliness
- unmiraculous — not caused by a miracle
- unproclaimed — to announce or declare in an official or formal manner: to proclaim war.
- unsystematic — having, showing, or involving a system, method, or plan: a systematic course of reading; systematic efforts.
- up-and-comer — likely to succeed; bright and industrious: an up-and-coming young executive.
- uricacidemia — lithemia.
- 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 It is now largely superseded by the Westinghouse brake system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 flask — A vacuum flask is a container which is used to keep hot drinks hot or cold drinks cold. It has two thin silvery glass walls with a vacuum between them.
- 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
- vax document — A document preparation system from DEC.