13-letter words containing i, r, d, o, u
- terbium oxide — an amorphous white powder, Tb 2 O 3 .
- tetrafluoride — a fluoride containing four fluorine atoms.
- thoracic duct — the main trunk of the lymphatic system, passing along the spinal column in the thoracic cavity, and conveying a large amount of lymph and chyle into the venous circulation.
- time-honoured — revered or respected because of antiquity and long continuance: a time-honored custom.
- trade council — a central council composed of local trade unions.
- trinucleotide — three linked nucleotides; triplet.
- triple double — a score in a basketball game of at least ten points, ten rebounds, and ten assists by a single player.
- triple-double — a score in a basketball game of at least ten points, ten rebounds, and ten assists by a single player.
- turkish pound — the Turkish lira.
- un-cloistered — secluded from the world; sheltered: a cloistered life.
- unbowdlerized — to expurgate (a written work) by removing or modifying passages considered vulgar or objectionable.
- uncategorized — to arrange in categories or classes; classify.
- unchlorinated — not chlorinated; not treated with chlorine
- uncompromised — unable to function optimally, especially with regard to immune response, owing to underlying disease, harmful environmental exposure, or the side effects of a course of treatment.
- unconsidering — not reflective or thoughtful
- unconstrained — forced, compelled, or obliged: a constrained confession.
- unconstricted — to draw or press in; cause to contract or shrink; compress.
- uncoordinated — of the same order or degree; equal in rank or importance.
- und so weiter — and so forth; et cetera. Abbreviation: usw, u.s.w.
- undeleterious — injurious to health: deleterious gases.
- under pain of — physical suffering or distress, as due to injury, illness, etc.
- underclothing — clothing worn next to the skin under outer clothes.
- underoccupied — not having enough to do or to engage one's attention
- underreaction — to react with less than the expected or appropriate emotion.
- understocking — to provide an insufficient quantity, as of merchandise, supplies, or livestock.
- underwithhold — to withhold too little.
- undirectional — of, relating to, or indicating direction in space.
- undiscouraged — to deprive of courage, hope, or confidence; dishearten; dispirit.
- undishonoured — not dishonoured; not disgraced or disrespected
- undoctrinaire — a person who does not subscribe to a particular doctrine or theory; a free thinker
- unforeskinned — circumcised
- unneighboured — having no neighbour or neighbours
- unobliterated — to blot out or render undecipherable (writing, marks, etc.); efface.
- unpersonified — to attribute human nature or character to (an inanimate object or an abstraction), as in speech or writing.
- unpreoccupied — not preoccupied
- unprovisioned — a clause in a legal instrument, a law, etc., providing for a particular matter; stipulation; proviso.
- unrefined oil — oil that hasn't been refined or processed
- unsoldierlike — not befitting a soldier
- untraditional — of or relating to tradition.
- uranium oxide — any of the compounds of uranium and oxygen, as UO 2 , UO 3 , U 4 O 9 , or U 3 O 8 .
- versicoloured — of variable or various colours
- vitreous body — a transparent gelatinous substance, permeated by fine fibrils, that fills the interior of the eyeball between the lens and the retina
- widow's cruse — an inexhaustible supply of something: in allusion to the miracle of the cruse of oil in I Kings 17:10–16 and II Kings 4:1–7.
- wine-coloured — of a dark red colour, sometimes with a purplish tinge
- without demur — If you do something without demur, you do it immediately and without making any protest.
- working fluid — a liquid or gaseous working substance.
- 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
- yourdon, inc. — (company) The company founded in 1974 by Edward Yourdon to provide educational, publishing, and consulting services in state-of-the-art software engineering technology. Over the next 12 years, the company grew to a staff of over 150 people, with offices throughout North America and Europe. As CEO of the company, Yourdon oversaw an operation that trained over 250,000 people around the world; the company was sold in 1986 and eventually became part of CGI, the French software company that is now part of IBM. The publishing division, Yourdon Press (now part of Prentice Hall), has produced over 150 technical computer books on a wide range of software engineering topics; many of these "classics" are used as standard university computer science textbooks.
- yttrium oxide — a white, water-insoluble powder, Y 2 O 3 , used chiefly in incandescent gas and acetylene mantles.
- zero altitude — the height at which the atmospheric pressure is 610.5Pa