13-letter words containing a, e, r, o, d, u
- sidereal hour — a 24th part of a sidereal day
- sodium borate — borax1 .
- sound barrier — Also called sonic barrier, transonic barrier. (not in technical use) a hypothetical barrier to flight beyond the speed of sound, so postulated because aircraft undergo an abruptly increasing drag force induced by compression of the surrounding air when traveling near the speed of sound.
- sound blaster — (hardware) The best known family of sound cards for the IBM PC from Creative Labs.
- southeastward — Also, southeastwards. toward the southeast.
- southern toad — a common toad, Bufo terrestris, of the southeastern U.S., having prominent knoblike crests on its head.
- southwestward — Also, southwestwards. toward the southwest.
- stout-hearted — brave and resolute; dauntless.
- subordinative — placed in or belonging to a lower order or rank.
- sugar of lead — lead acetate.
- superdiplomat — a highly skilled or powerful diplomat, a high-ranking diplomat
- superdominant — submediant.
- superordinary — that is superior to the ordinary
- superordinate — of higher degree in condition or rank.
- talcum powder — a powder made of purified, usually perfumed talc, for toilet purposes.
- tetradynamous — having four long and two short stamens, as a cruciferous flower.
- tetrafluoride — a fluoride containing four fluorine atoms.
- thoroughpaced — trained to go through all the possible paces, as a horse.
- trade council — a central council composed of local trade unions.
- trade journal — periodical of a profession
- treasury bond — any of various interest-bearing bonds issued by the U.S. Treasury Department, usually maturing over a long period of time.
- turbo-charged — A turbo-charged engine or vehicle is fitted with a turbo.
- unadventurous — inclined or willing to engage in adventures; enjoying adventures.
- uncategorized — to arrange in categories or classes; classify.
- unchlorinated — not chlorinated; not treated with chlorine
- unconsecrated — to make or declare sacred; set apart or dedicate to the service of a deity: to consecrate a new church building.
- unconstrained — forced, compelled, or obliged: a constrained confession.
- uncoordinated — of the same order or degree; equal in rank or importance.
- under a cloud — a visible collection of particles of water or ice suspended in the air, usually at an elevation above the earth's surface.
- under pain of — physical suffering or distress, as due to injury, illness, etc.
- undermodulate — to reproduce (a sound or signal) at below the optimal output level in a recording or broadcasting system, causing it to be distorted.
- underreaction — to react with less than the expected or appropriate emotion.
- undirectional — of, relating to, or indicating direction in space.
- undiscouraged — to deprive of courage, hope, or confidence; dishearten; dispirit.
- undoctrinaire — a person who does not subscribe to a particular doctrine or theory; a free thinker
- unobliterated — to blot out or render undecipherable (writing, marks, etc.); efface.
- unstercorated — not stercorated or covered in dung
- untransformed — not transformed; not having been transformed
- upland plover — a large, field-inhabiting sandpiper, Bartramia longicauda, of eastern North America, resembling a plover: now protected and increasing in numbers.
- uranium oxide — any of the compounds of uranium and oxygen, as UO 2 , UO 3 , U 4 O 9 , or U 3 O 8 .
- waste product — material discarded as useless in the process of producing something.
- weather-bound — delayed or shut in by bad weather.
- well-favoured — of pleasing appearance; good-looking; pretty or handsome.
- wend your way — If you wend your way in a particular direction, you walk, especially slowly, casually, or carefully, in that direction.
- young ireland — a movement or party of Irish patriots in the 1840s who split with Daniel O'Connell because they favoured a more violent policy than that which he promoted
- zero altitude — the height at which the atmospheric pressure is 610.5Pa