19-letter words containing r, u
- juan de fuca strait — strait between Vancouver Island and NW Wash.: c. 100 mi (161 km) long
- judicial conference — a conference of judges held to discuss improvements in methods or judicial procedure through court rules or otherwise.
- judicial separation — a decree of legal separation of spouses that does not dissolve the marriage bond.
- jumping bristletail — any of several thysanuran insects that live in dark, warm, moist places, as under leaves, bark, and dead tree trunks and along rocky seacoasts, and are active jumpers, making erratic leaps when disturbed.
- junction transistor — a bipolar transistor consisting of two p-n junctions combined to form either an n-p-n or a p-n-p transistor, having the three electrodes, the emitter, base, and collector
- junior bantamweight — a boxer weighing up to 115 pounds (51.7 kg), between flyweight and bantamweight.
- junior middleweight — a boxer weighing up to 154 pounds (69.3 kg), between welterweight and middleweight.
- junior welterweight — a boxer weighing up to 140 pounds (63 kg), between lightweight and welterweight.
- keep an eye out for — the organ of sight, in vertebrates typically one of a pair of spherical bodies contained in an orbit of the skull and in humans appearing externally as a dense, white, curved membrane, or sclera, surrounding a circular, colored portion, or iris, that is covered by a clear, curved membrane, or cornea, and in the center of which is an opening, or pupil, through which light passes to the retina.
- keep up appearances — If you keep up appearances, you try to behave and dress in a way that people expect of you, even if you can no longer afford it.
- keyboard instrument — any musical instrument that is played using a keyboard
- kingdom of burgundy — a kingdom in E France, established in the early 6th century ad, eventually including the later duchy of Burgundy, Franche-Comté, and the Kingdom of Provence: known as the Kingdom of Arles from the 13th century
- knock-down-drag-out — marked by unrelenting violence: a knock-down-drag-out fight.
- knock-out agreement — an agreement between bidders at an auction or sale not to bid against each other
- lagrangian function — kinetic potential.
- land of opportunity — Arkansas (used as a nickname).
- landrum-griffin act — an act of Congress (1959) outlawing secondary boycotts, requiring public disclosure of the financial records of unions, and guaranteeing the use of secret ballots in union voting.
- language laboratory — a special room or rooms with sound-recording and -reproducing equipment for use by students to practice speaking foreign languages, usually with an instructor monitoring the program.
- large munsterlander — a strongly built gun dog with a long dense black-and-white coat
- least recently used — (operating systems) (LRU) A rule used in a paging system which selects a page to be paged out if it has been used (read or written) less recently than any other page. The same rule may also be used in a cache to select which cache entry to flush. This rule is based on temporal locality - the observation that, in general, the page (or cache entry) which has not been accessed for longest is least likely to be accessed in the near future.
- left-luggage locker — a coin-operated locker in which luggage can be left
- leisure occupations — activities which you enjoy and which you perform in your free time
- leveling instrument — an instrument used to establish a horizontal line of sight, usually by means of a spirit level.
- liability insurance — insurance covering the insured against losses arising from injury or damage to another person or property.
- lieutenant governor — a state officer next in rank to a governor, who takes the governor's place in case of the latter's absence, disability, or death.
- life-support system — A life-support system is the same as a life-support machine.
- lift the curtain on — to begin
- lighten sb's burden — If someone or something lightens your burden or your load, they make a bad or difficult situation better for you.
- lightning conductor — A lightning conductor is a long thin piece of metal on top of a building that attracts lightning and allows it to reach the ground safely.
- limit of resolution — the capacity of an optical system to resolve point objects as separate images.
- liouville's theorem — the theorem that every function of a complex variable, bounded and differentiable for all finite values of the variable, is a constant function.
- liquorice all-sorts — a brand of assorted sweets containing liquorice as well as coloured candy made of sugar, gelatine, and coconut
- logical unit number — (storage) (LUN) A 3-bit identifier used on a SCSI bus to distinguish between up to eight devices (logical units) with the same SCSI ID.
- longitudinal parity — (storage, communications) An extra byte (or word) appended to a block of data in order to reveal corruption of the data. Bit n of this byte indicates whether there was an even or odd number of "1" bits in bit position n of the bytes in the block. The parity byte is computed by XORing the data bytes in the block. Longitudinal parity allows single bit errors to be detected.
- lose no opportunity — If you say that someone loses no opportunity to do or say a particular thing, you are emphasizing that they do it or say it whenever it is possible.
- lose your virginity — When you lose your virginity, you have sex for the first time.
- louis ii de bourbon — Condé, Prince de.
- lucia di lammermoor — an opera (1835) by Gaetano Donizetti, based on Sir Walter Scott's novel The Bride of Lammermoor.
- lumholtz's kangaroo — boongary.
- lupus erythematosus — any of several autoimmune diseases, especially systemic lupus erythematosus, characterized by red, scaly skin patches.
- luteinizing hormone — LH.
- machine instruction — (programming) The smallest element of a machine code program.
- magnesium carbonate — a white powder, MgCO 3 , insoluble in water and alcohol, soluble in acids, used in dentifrices and cosmetics, in medicine as an antacid, and as a refractory material.
- magnesium hydroxide — a white, crystalline, slightly water-soluble powder, Mg(OH) 2 , used chiefly in medicine as an antacid and as a laxative.
- malice aforethought — a predetermination to commit an unlawful act without just cause or provocation (applied chiefly to cases of first-degree murder).
- manchester autocode — (language, history) The predecessor of Mercury Autocode.
- manual transmission — an automotive transmission in which the driver shifts gears manually.
- manufacturing plant — factory
- mary mcleod bethune — Mary McLeod [muh-kloud] /məˈklaʊd/ (Show IPA), 1875–1955, U.S. educator and civil-rights leader.
- master of foxhounds — the person responsible for the conduct of a fox hunt and to whom all members of the hunt and its staff are responsible. Abbreviation: M.F.H.