14-letter words containing r, a, m, u
- union of burma — former official name of Burma.
- unitary matrix — a square matrix that is the inverse of its Hermitian conjugate
- universal beam — a broad-flanged rolled steel joist suitable for a stanchion (axial load) or beam (bending load)
- universal mill — a rolling mill having both horizontal and vertical rolls.
- universal time — (time, standard) (UT) The mean solar time along the prime meridian (0 longitude) that runs through the Greenwich Observatory outside of London, UK, where the current system originated. UT is tied to the rotation of the Earth in respect to the fictitious "mean Sun". There are three separate definitions, UT0, UT1, and UT2, depending on which corrections have been applied to the Earth's motion. Coordinated Universal Time is kept within 0.9 seconds of UT1, by addition of leap seconds to International Atomic Time.
- unmaneuverable — capable of being steered or directed; easy to maneuver: The polyethylene craft remains as durable and maneuverable as any conventional high-performance kayak.
- unmanufactured — (of a product, commodity, etc) not manufactured
- unmarriageable — suitable or attractive for marriage: The handsome and successful young man was considered eminently marriageable.
- unmaterialised — not materialised
- unmaterialized — to come into perceptible existence; appear; become actual or real; be realized or carried out: Our plans never materialized.
- unmatriculated — (of a student) not enrolled in a college, university, or similar institution
- unmerchantable — (of goods) not suitable for trading
- unmetaphorical — not used, viewed, or intended as a metaphor
- unparsimonious — characterized by or showing parsimony; frugal or stingy.
- unpremeditable — capable of being premeditated
- unpremeditated — done deliberately; planned in advance: a premeditated murder.
- unprogrammable — not able to be programmed
- unremunerative — not rewarding or paying for work or service, etc
- unrhythmically — in an unrhythmical manner
- unromantically — in an unromantic manner
- unromanticized — not romantic
- unsectarianism — the state or quality of being unsectarian
- unsurmountable — to mount upon; get on the top of; mount upon and cross over: to surmount a hill.
- untransmutable — intransmutable
- up to the mark — acceptably good
- ural mountains — a mountain system in W central Russia, extending over 2000 km (1250 miles) from the Arctic Ocean towards the Aral Sea: forms part of the geographical boundary between Europe and Asia; one of the richest mineral areas in the world, with many associated major industrial centres. Highest peak: Mount Narodnaya, 1894 m (6214 ft)
- uranium dating — a method of dating archaeological or geological specimens by determining the decay activity of the uranium in a given sample.
- uranium series — the radioactive series that starts with uranium 238 and ends with a stable isotope of lead of mass number 206.
- utilitarianism — the ethical doctrine that virtue is based on utility, and that conduct should be directed toward promoting the greatest happiness of the greatest number of persons.
- vacuum cleaner — an electrical appliance for cleaning carpets, floors, etc., by suction.
- vacuum forming — a process in which a sheet of warmed thermoplastic is shaped by placing it in a mould and applying suction
- vacuum residue — Vacuum residue is the substance which is obtained by vacuum distillation (= a process of separating substances by reducing pressure to less than atmospheric pressure).
- virtual memory — a system whereby addressable memory is extended beyond main storage through the use of secondary storage managed by system software in such a way that programs can treat all of the designated storage as addressable main storage.
- volumetrically — of or relating to measurement by volume.
- volunteer army — a military force composed entirely of enlistees.
- ward cunnigham — (person) The creator of the first wiki.
- water measurer — a slender heteropterous bug, Hydrometra stagnorum, that has a greatly elongated head and is found on still or sluggish water where it preys on water fleas, mosquito larvae, etc
- woman suffrage — the right of women to vote; female suffrage.
- xiphihumeralis — a long pectoral muscle found only in felines
- yom kippur war — a war that began on Yom Kippur in 1973 with the attack of Israel by Egypt, Syria, and Iraq: Israel recovered most of its initial losses.
- young marrieds — young married people
- yttrium metals — a series of closely related metals including yttrium, holmium, erbium, thulium, ytterbium, lutetium, and sometimes, terbium, gadolinium, and dysprosium
- zonal geranium — a widely cultivated plant, Pelargonium hortorum, having white, pink, or red flowers and rounded leaves that are sometimes banded or blotched with contrasting colors.
- zygosporangium — a sporangium that bears a zygospore.