12-letter words containing a, v, i, r, u
- revictualled — victuals, food supplies; provisions.
- sanguivorous — feeding on blood, as a bat or insect.
- security van — an armoured van used to transport money or other valuables
- sendai virus — a paramyxovirus that tends to cause cell fusion: in inactive form, used in biological research to produce cells with multiple nuclei of different genetic constitutions.
- squaresville — a thing, place, etc., regarded as conventional, unfashionable, or conservative.
- stirrup-vase — a Mycenaean vase having a spherical body, a spout on the shoulder, and a handle, curving across the top, supported by a solid conical neck.
- stradivarius — a violin or other instrument made by Stradivari or his family.
- struma-river — a river in S Europe, flowing SE through SW Bulgaria and NE Greece into the Aegean. 225 miles (362 km) long.
- supergravity — a hypothetical symmetry among groups of particles containing fermions and bosons, especially in theories of gravity (supergravity) that unify electromagnetism, the weak force, and the strong force with gravity into a single unified force.
- supermassive — (of a black hole or star) having a mass in the range of millions or billions of times that of the sun
- supravitally — in a supravital manner
- surveillance — a watch kept over a person, group, etc., especially over a suspect, prisoner, or the like: The suspects were under police surveillance.
- survival bag — a large plastic bag carried by climbers for use in an emergency as protection against exposure
- survival kit — Military. a package containing medical supplies, rations, and other vital equipment for use by a person forced to land in or parachute into the ocean, jungle, or other isolated or hostile territory.
- transumptive — of or relating to transumption
- turacoverdin — a green pigment found in certain feathers of the touraco
- ultraviolent — characterized by or pertaining to extreme acts of violence
- unadvertised — to announce or praise (a product, service, etc.) in some public medium of communication in order to induce people to buy or use it: to advertise a new brand of toothpaste.
- unaggressive — characterized by or tending toward unprovoked offensives, attacks, invasions, or the like; militantly forward or menacing: aggressive acts against a neighboring country.
- unattractive — providing pleasure or delight, especially in appearance or manner; pleasing; charming; alluring: an attractive personality.
- unchivalrous — having the qualities of chivalry, as courage, courtesy, and loyalty.
- uncreativity — the state or quality of being creative.
- underachieve — to perform, especially academically, below the potential indicated by tests of one's mental ability or aptitude.
- undervaluing — to value below the real worth; put too low a value on.
- unforgivable — to grant pardon for or remission of (an offense, debt, etc.); absolve.
- unforgivably — in an unforgivable manner
- universalism — universal character; universality.
- universalist — a person characterized by universalism, as in knowledge, interests, or activities.
- universality — the character or state of being universal; existence or prevalence everywhere.
- universalize — to make universal.
- unpersuasive — not capable of persuading
- unprevailing — lacking force, not effective
- unrelievable — to ease or alleviate (pain, distress, anxiety, need, etc.).
- unreviewable — a critical article or report, as in a periodical, on a book, play, recital, or the like; critique; evaluation.
- unsurvivable — able to be survived: Would an atomic war be survivable?
- unvariegated — varied; diversified; diverse.
- unverbalized — not verbalized or put into words
- unverifiable — to prove the truth of, as by evidence or testimony; confirm; substantiate: Events verified his prediction.
- unwaveringly — to sway to and fro; flutter: Foliage wavers in the breeze.
- uv ceti star — flare star.
- vainglorious — filled with or given to vainglory: a vainglorious actor.
- valetudinary — valetudinarian.
- vapour trail — A vapour trail is a white line of water vapour left in the sky by an aeroplane, a rocket, or a missile.
- varicoloured — having many colours; variegated; motley
- variety turn — an act in a variety show
- variocoupler — a transformer having coils with a self-impedance that is essentially constant but a mutual impedance that can be varied by moving one coil with respect to the other.
- vascularised — (of a tissue or embryo) to develop or extend blood vessels or other fluid-bearing vessels or ducts; become vascular.
- vascularized — rendered vascular by the formation of new blood vessels.
- vasoligature — vasoligation.
- venus's-hair — a delicate maidenhair fern, Adiantum capillus-veneris.