19-letter words containing r, e, i, n, l
- transuranic element — any element having an atomic number greater than 92, the atomic number of uranium. All such elements are radioactive and can be synthesized by bombarding a heavy element with a light particle or element. See also transactinide element.
- traveling-wave tube — an electron tube used in microwave communications systems, having an electron beam directed coaxially through a wire helix to produce amplification.
- travelling expenses — expenses that are paid to someone, for example, by their employer, for the costs they need to travel
- travelling salesman — A travelling salesman is a salesman who travels to different places and meets people in order to sell goods or take orders.
- trentino-alto adige — a region in NE Italy. 870,238; 5256 sq. mi. (13.615 sq. km).
- triangle inequality — the theorem that the absolute value of the sum of two quantities is less than or equal to the sum of the absolute values of the quantities.
- triangulum australe — a small bright triangular constellation in the S hemisphere, lying between Ara and the Southern Cross, that contains an open star cluster
- trickle-down theory — an economic theory that monetary benefits directed especially by the government to big business will in turn pass down to and profit smaller businesses and the general public.
- trifacial neuralgia — tic douloureux.
- triple counterpoint — invertible counterpoint involving three transposable voices.
- trooping the colour — a military ceremony, performed by regiments of the British army and the Commonwealth, in which the regimental colour or flag is marched past ranks of troops
- tropical depression — an atmospheric low-pressure system originating in the tropics, specifically, a tropical cyclone in which the maximum sustained wind speed is 38 miles per hour (62 kilometers per hour) or less.
- trusteeship council — a United Nations body that supervises the government of a territory by a foreign country
- turn a blind eye to — to pretend not to notice or ignore deliberately
- ultracrepidarianism — noting or pertaining to a person who criticizes, judges, or gives advice outside the area of his or her expertise: The play provides a classic, simplistic portrayal of an ultracrepidarian mother-in-law.
- ultrahigh frequency — any frequency between 300 and 3000 megahertz. Abbreviation: UHF, uhf.
- ultrasonic cleaning — the use of ultrasound to vibrate a piece to be cleaned while the piece is immersed in a cleaning fluid. The process produces a very high degree of cleanliness, and is used for jewellery and ornately shaped items
- unclassified degree — a degree that has not been given a grade because it is of a low standard
- under police escort — If you go somewhere or are taken somewhere under police escort, you go there accompanied by a police escort.
- under the influence — the capacity or power of persons or things to be a compelling force on or produce effects on the actions, behavior, opinions, etc., of others: He used family influence to get the contract.
- under the spotlight — If someone or something comes under the spotlight, they are thoroughly examined, especially by journalists and the public.
- universal recipient — a person with blood type AB, able to receive blood from a person of any blood type but able to donate blood only to a person with the same blood type
- university hospital — a hospital that is affiliated with a university. University hospitals provide clinical education and training to future and current doctors, nurses, and other health professionals, in addition to delivering medical care to patients
- unnatural practices — acts which are deemed to be contrary to expected standards of human behaviour
- vaginal intercourse — intercourse involving insertion of the penis into the vagina
- velocity microphone — a microphone in which the output varies according to the instantaneous velocity of the air molecules in the incident sound waves.
- venus of willendorf — a village in NE Austria, near Krems: site of an Aurignacian settlement where a 4½ inches (11 cm) limestone statuette (Venus of Willendorf) was found.
- vesicular exanthema — an infectious viral disease of swine, characterized by blisters on the snout, mucous membranes, and feet.
- victor emmanuel iii — 1869–1947, king of Italy 1900–46.
- vinylidene chloride — a colorless, volatile, flammable liquid, C 2 H 2 Cl, that is copolymerized chiefly with vinyl chloride to form saran.
- virginia-rail-fence — snake fence.
- volumetric analysis — determination of the concentration, by volume, of a substance in a solution, as by titration.
- wandering albatross — a large albatross, Diomedea exulans, of southern waters, having the plumage mostly white with dark markings on the upper parts.
- waterglass painting — stereochromy.
- western yellow pine — ponderosa pine.
- whistle in the dark — to make a clear musical sound, a series of such sounds, or a high-pitched, warbling sound by the forcible expulsion of the breath through a small opening formed by contracting the lips, or through the teeth, with the aid of the tongue.
- wild bleeding-heart — a plant, Dicentra eximia, of the fumitory family, native to the eastern coast of the U.S., having elongated clusters of drooping, heart-shaped rose-colored or pink flowers.
- winged spindle tree — a stiff, spreading shrub, Euonymus alata, of eastern Asia, having corky-winged twigs, yellowish flowers, and purplish fruit.
- withdrawal syndrome — a spectrum of physical and behavioral symptoms following cessation from the continuous use of an addictive drug, the character and severity of the symptoms depending upon the particular drug and the daily dose.
- writing on the wall — writing done with a pen or pencil in the hand; script.
- xenon tetrafluoride — a colorless, crystalline compound, XeF 4 , prepared by heating a gaseous mixture of fluorine and xenon.
- xenotransplantation — xenograft.
- yellowtail flounder — a righteyed flounder, Limanda ferruginea, inhabiting waters along the Atlantic coast of North America, having a yellowish tail fin and rusty-red spots on the body: once commercially important, now greatly reduced in number.
- zenithal projection — a type of map projection in which part of the earth's surface is projected onto a plane tangential to it, either at one of the poles (polar zenithal), at the equator (equatorial zenithal), or between (oblique zenithal)