12-letter words containing r, a, d, i, u
- sunda strait — a strait between Sumatra and Java, connecting the Java Sea and the Indian Ocean. 20–65 miles (32–105 km) wide.
- superordinal — relating to the superorder
- surfboarding — a long, narrow board on which a person stands or lies prone in surfboarding.
- surinam toad — a South American aquatic frog, Pipa pipa, the female of which carries the eggs and tadpoles in small depressions on its back.
- swiss guards — a corps of Swiss mercenary soldiers, esp. those hired as Vatican bodyguards to the pope
- traducianism — the doctrine that the human soul is propagated along with the body. Compare creationism (def 3).
- traffic duty — an assignment to help the flow of traffic and enforce traffic regulations
- transduction — the transfer of genetic material from one cell to another by means of a virus.
- translucidus — (of a cloud) sufficiently transparent as not to obscure the sun, moon, or higher clouds.
- transudation — the act or process of transuding.
- trepidatious — tremulous fear, alarm, or agitation; perturbation.
- triadelphous — (of stamens) united by the filaments into three sets or bundles.
- tribute band — A tribute band is a pop group that plays the music and copies the style of another, much more famous, pop group.
- tricuspidate — having three cusps or flaps.
- tripudiation — the act of dancing for joy
- trudeaumania — obsessional enthusiasm for Pierre Trudeau
- truk islands — a group of islands in the W Pacific, in the E Caroline Islands: administratively part of the US Trust Territory of the Pacific Islands from 1947; became self-governing in 1979 as part of the Federated States of Micronesia; consists of 11 chief islands; a major Japanese naval base during World War II. Pop: 53 381 (2006). Area: 130 sq km (50 sq miles)
- turacoverdin — a green pigment found in certain feathers of the touraco
- turf dancing — a fluid style of street-dancing originating in the Bay Area of San Francisco, California
- ultradistant — extremely distant
- ultraradical — extremely radical, esp having radical political ideas
- ultrarefined — having been refined exceptionally well or thoroughly
- un-liberated — to set free, as from imprisonment or bondage.
- un-manicured — a cosmetic treatment of the hands and fingernails, including trimming and polishing of the nails and removing cuticles.
- unaccredited — officially recognized as meeting the essential requirements, as of academic excellence: accredited schools.
- 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.
- unaffrighted — to frighten.
- unattributed — to regard as resulting from a specified cause; consider as caused by something indicated (usually followed by to): She attributed his bad temper to ill health.
- unauthorized — lacking permission; unsanctioned: unauthorized access.
- unbridgeable — a structure spanning and providing passage over a river, chasm, road, or the like.
- uncalibrated — to determine, check, or rectify the graduation of (any instrument giving quantitative measurements).
- uncirculated — to move in a circle or circuit; move or pass through a circuit back to the starting point: Blood circulates throughout the body.
- uncreditable — of ignoble character
- undeliberate — carefully weighed or considered; studied; intentional: a deliberate lie.
- undemocratic — pertaining to or of the nature of democracy or a democracy.
- underachieve — to perform, especially academically, below the potential indicated by tests of one's mental ability or aptitude.
- underbearing — unassuming
- undercoating — a coat or jacket worn under another.
- underdrawing — the act of sketching a subject before painting it on the same surface
- underlapping — to extend partly under.
- undermanning — the condition of not having enough employees to function properly
- undermeaning — what is intended to be, or actually is, expressed or indicated; signification; import: the three meanings of a word.
- underpassion — an underlying or subconscious passion
- undersealing — the process of applying a coating of underseal to a motor vehicle
- understating — to state or represent less strongly or strikingly than the facts would bear out; set forth in restrained, moderate, or weak terms: The casualty lists understate the extent of the disaster.
- undertakings — the act of a person who undertakes any task or responsibility.
- undervaluing — to value below the real worth; put too low a value on.
- undespairing — not despairing; not giving in to despair
- undischarged — gun: not let off
- undiscordant — not discordant; not disagreeing or disagreeable