13-letter words containing a, n, b, r
- unprotectable — to defend or guard from attack, invasion, loss, annoyance, insult, etc.; cover or shield from injury or danger.
- unreclaimable — not able to be reclaimed, reformed, or rescued from vice
- unreclaimably — in an unreclaimable manner
- unrecoverable — able to recover or be recovered: a patient now believed to be recoverable; recoverable losses on his investments.
- unrecoverably — in an unrecoverable or irrecoverable manner
- unrectifiable — able to be rectified.
- unregrettable — causing or deserving regret; unfortunate; deplorable.
- unregrettably — causing or deserving regret; unfortunate; deplorable.
- unreliability — not reliable; not to be relied or depended on.
- unreplaceable — to assume the former role, position, or function of; substitute for (a person or thing): Electricity has replaced gas in lighting.
- unreprievable — not able to be reprieved, eased, or postponed
- unrespectable — not able to be respected
- unretractable — to withdraw (a statement, opinion, etc.) as inaccurate or unjustified, especially formally or explicitly; take back.
- unretrievable — to recover or regain: to retrieve the stray ball.
- unscratchable — to break, mar, or mark the surface of by rubbing, scraping, or tearing with something sharp or rough: to scratch one's hand on a nail.
- unserviceable — not suitable to be used
- unsmotherable — unquenchable
- unstretchable — to draw out or extend (oneself, a body, limbs, wings, etc.) to the full length or extent (often followed by out): to stretch oneself out on the ground.
- unsupportable — capable of being supported; endurable; maintainable.
- unsurpassable — to go beyond in amount, extent, or degree; be greater than; exceed.
- unsurpassably — in an unsurpassable manner; in a way that cannot be surpassed
- untarnishable — to dull the luster of (a metallic surface), especially by oxidation; discolor.
- untraversable — to pass or move over, along, or through.
- unvitrifiable — not able to be vitrified
- unwarrantable — capable of being warranted.
- unworkability — the quality or state of being unworkable
- urban dweller — a person who lives in an urban area
- urban planner — a person who plans and designs urban areas
- urban renewal — the rehabilitation of city areas by renovating or replacing dilapidated buildings with new housing, public buildings, parks, roadways, industrial areas, etc., often in accordance with comprehensive plans.
- urban studies — the various disciplines associated with the study of urban areas, including urban planning, urban economics and urban architecture
- vandyke beard — a short, pointed beard.
- vandyke brown — a medium brown color.
- vannevar bush — (person) Dr. Vannevar Bush, 1890-1974. The man who invented hypertext, which he called memex, in the 1930s. Bush did his undergraduate work at Tufts College, where he later taught. His masters thesis (1913) included the invention of the Profile Tracer, used in surveying work to measure distances over uneven ground. In 1919, he joined MIT's Department of Electrical Engineering, where he stayed for twenty-five years. In 1932, he was appointed vice-president and dean. At this time, Bush worked on optical and photocomposition devices, as well as a machine for rapid selection from banks of microfilm. Further positions followed: president of the Carnegie Institute in Washington, DC (1939); chair of National Advisory Committee for Aeronautics (1939); director of Office of Scientific Research and Development. This last role was as presidential science advisor, which made him personally responsible for the 6,000 scientists involved in the war effort. During World War II, Bush worked on radar antenna profiles and the calculation of artillery firing tables. He proposed the development of an analogue computer, which later became the Rockefeller Differential Analyser. Bush is the pivotal figure in hypertext research. His ground-breaking 1945 paper, "As We May Think," speculated on how a machine might be created to assist human reasoning, and introduced the idea of an easily accessible, individually configurable storehouse of knowledge. This machine, which he dubbed "memex," in various ways anticipated hypermedia and the World Wide Web by nearly half a century.
- vasoinhibitor — an agent, as a drug, that inhibits the action of the vasomotor nerves.
- verbalization — to express in words: He couldn't verbalize his feelings.
- verbigeration — the condition or instances of repeating the same word or sentence against one's will as a symptom of a psychiatric disorder
- victorian box — a tree, Pittosporum undulatum, of Australia, having shiny, wavy-margined, oblong leaves and fragrant clusters of yellowish flowers.
- visual binary — a binary star having components that are sufficiently separated to be resolved by a telescope.
- vraisemblance — verisimilitude; appearance of truth
- vulnerability — capable of or susceptible to being wounded or hurt, as by a weapon: a vulnerable part of the body.
- warner robins — a city in central Georgia.
- warping board — a rectangular board containing evenly spaced pegs at each end on which the warp is wound in preparation for weaving.
- warren burger — Warren Earl, 1907–1995, U.S. jurist: chief justice of the U.S. 1969–86.
- water boatman — any of numerous aquatic insects of the family Corixidae, having paddlelike hind legs.
- water turbine — a turbine driven by the momentum or reactive force of water.
- waterboarding — a harsh interrogation technique in which water is poured onto the face and head of the immobilized victim so as to induce a fear of drowning.
- weather-bound — delayed or shut in by bad weather.
- weatherbeaten — Alternative spelling of weather-beaten.
- winter barley — barley that is planted in the autumn to be harvested in the spring or early summer.
- winter's bark — an evergreen tree, Drimys winteri, ranging from Mexico to Cape Horn, having aromatic leaves and cream-colored, jasmine-scented flowers.