15-letter words containing a, n, u, r
- uninterpretable — to give or provide the meaning of; explain; explicate; elucidate: to interpret the hidden meaning of a parable.
- universal chuck — a chuck, as on a lathe headstock, having three stepped jaws moving simultaneously for precise centering of a workpiece of any of a wide range of sizes.
- universal class — (in the theory of classes) the class that includes all other classes and is composed of all individuals composing these classes.
- universal donor — a person with blood of group O.
- universal joint — piece that couples two rotating shafts
- universal motor — a series-wound motor, of one-half horsepower or less, using alternating or direct current.
- universal stage — a small theodolite mounted on the stage of a polarizing microscope and used in the petrographic analysis of rocks.
- university park — a city in N Texas.
- unix conspiracy — [ITS] According to a conspiracy theory long popular among ITS and TOPS-20 fans, Unix's growth is the result of a plot, hatched during the 1970s at Bell Labs, whose intent was to hobble AT&T's competitors by making them dependent upon a system whose future evolution was to be under AT&T's control. This would be accomplished by disseminating an operating system that is apparently inexpensive and easily portable, but also relatively unreliable and insecure (so as to require continuing upgrades from AT&T). This theory was lent a substantial impetus in 1984 by the paper referenced in the back door entry. In this view, Unix was designed to be one of the first computer viruses (see virus) - but a virus spread to computers indirectly by people and market forces, rather than directly through disks and networks. Adherents of this "Unix virus" theory like to cite the fact that the well-known quotation "Unix is snake oil" was uttered by DEC president Kenneth Olsen shortly before DEC began actively promoting its own family of Unix workstations. (Olsen now claims to have been misquoted.)
- unleaded petrol — petrol containing a reduced amount of tetraethyl lead
- unmaterialistic — excessively concerned with physical comforts or the acquisition of wealth and material possessions, rather than with spiritual, intellectual, or cultural values.
- unnatural death — death resulting from an external cause, such as intentional injury (such as homicide or suicide) or unintentional injury (in an accident)
- unparliamentary — not parliamentary; at variance with or contrary to the methods employed by parliamentary bodies.
- unparticipative — to take or have a part or share, as with others; partake; share (usually followed by in): to participate in profits; to participate in a play.
- unpatriotically — in a manner that is not enthusiastically supporting one's country and its ways of life
- unpractisedness — the quality or state of being unpractised
- unpronounceable — to enunciate or articulate (sounds, words, sentences, etc.).
- unproportionate — proportioned; being in due proportion; proportional.
- unprotestantize — to make something (e.g. a church, country, etc) a religion other than Protestant
- unrealistically — interested in, concerned with, or based on what is real or practical: a realistic estimate of costs; a realistic planner.
- unrecommendable — not able to be recommended, supported, or endorsed
- unrehabilitated — to restore to a condition of good health, ability to work, or the like.
- unrevolutionary — not revolutionary, progressive, or radical
- unsarcastically — of, relating to, or characterized by sarcasm: a sarcastic reply.
- unseaworthiness — constructed, outfitted, manned, and in all respects fitted for a voyage at sea.
- unskilled labor — work that requires practically no training or experience for its adequate or competent performance.
- unsportsmanlike — a man who engages in sports, especially in some open-air sport, as hunting, fishing, racing, etc.
- untraditionally — in an untraditional fashion; not traditionally
- untransmigrated — not transmigrated; not transferred or caused to be transferred
- untransmissible — intransmissible
- unverifiability — the quality or state of being unverifiable
- upper arlington — a city in central Ohio, near Columbus.
- upper peninsula — a peninsula in the northern US between Lakes Superior and Michigan, constituting the N part of the state of Michigan
- upperclasswoman — An upperclasswoman is a junior or senior student in a high school, college, or university.
- uralian emerald — demantoid: not a true emerald.
- uranium dioxide — a black, crystalline compound, UO 2 , insoluble in water, used in nuclear fuel rods, in ceramics, and pigments.
- uranium-bearing — containing or producing uranium
- urban guerrilla — a member of any underground political group engaged in terrorism or violence in urban areas, especially during the 1970s.
- urban migration — the process of people moving from rural areas to cities
- urban sociology — the sociological study of cities and their role in the development of society.
- urinary bladder — a distensible, muscular and membranous sac, in which the urine is retained until it is discharged from the body.
- uropygial gland — a gland opening on the back at the base of the tail in most birds that secretes an oily fluid used by the bird in preening its feathers.
- ust-kamenogorsk — a city in E Kazakhstan, on the Irtysh River.
- vacation course — a course of study undertaken during a vacation, usually combined with other activities
- vacuum concrete — concrete from which excess moisture and air are sucked to quicken hardening and increase strength.
- vascular bundle — a longitudinal arrangement of strands of xylem and phloem, and sometimes cambium, that forms the fluid-conducting channels of vascular tissue in the rhizomes, stems, and leaf veins of vascular plants, the arrangement varying with the type of plant.
- vascularization — (of a tissue or embryo) to develop or extend blood vessels or other fluid-bearing vessels or ducts; become vascular.
- venture capital — funds invested or available for investment in a new or unproven business enterprise.
- venus hairstone — a variety of rutilated quartz, used as a gemstone.
- venus's-flytrap — a carnivorous plant, Dionaea muscipula, native to bogs of North and South Carolina, having roundish leaves with two lobes that close like a trap when certain delicate hairs on them are irritated, as by a fly: the range is now reduced, though the plants are still locally abundant.