13-letter words containing t, a, i, l, w
- negative glow — the luminous region between the Crookes dark space and the Faraday dark space in a vacuum tube, occurring when the pressure is low.
- new australia — the colony on socialist principles founded by William Lane in Paraguay in 1893
- night crawler — an earthworm.
- nightcrawlers — Plural form of nightcrawler.
- niklaus wirth — (person) The designer of the Modula-2, Modula-3, and, in around 1970, Pascal programming languages.
- optical crown — an optical glass of low dispersion and relatively low refractive index. It is used in the construction of lenses
- optical wedge — a wedge-shaped filter whose transmittance decreases from one end to the other: used as an exposure control device in sensitometry.
- organ whistle — a steam or air whistle in which the jet is forced up against the thin edge of a pipe closed at the top.
- ottawa euclid — Euclid
- outlaw regime — a dangerously unpredictable political regime, as of a country, state, etc, which disregards international law or diplomacy
- outlaw strike — wildcat strike.
- outwash plain — Geology. a broad, sloping landform built of coalesced deposits of outwash.
- pair trawling — the act or practice of using two boats to trawl for fish
- palm off with — If you say that you are palmed off with a lie or an excuse, you are annoyed because you are told something in order to stop you asking any more questions.
- parent-in-law — the father or mother of one's wife or husband.
- pearly whites — white and lustrous as a pearl.
- play hob with — to make trouble for; interfere with and make disordered
- playwrighting — the writing of plays
- raw materials — Raw materials are materials that are in their natural state, before they are processed or used in manufacturing.
- relative wind — the velocity or direction of airflow with respect to the body it surrounds, especially an airfoil.
- sawdust trail — the road to conversion or rehabilitation, as for a sinner or criminal.
- serial writer — someone who writes novels, dramas, etc, presented in separate instalments at regular intervals
- silver wattle — a tree, Acacia dealbata, of the legume family, native to Australia and Tasmania, having feathery, silver-gray foliage and fragrant yellow flowers.
- sister-in-law — the sister of one's husband or wife.
- solitary wasp — any of numerous wasps, as the sand wasps or mud wasps, that do not live in a community.
- solitary wave — a localized disturbance that propagates like a wave but resembles a particle in that it does not disperse, even if it collides with other such waves.
- sow wild oats — any uncultivated species of Avena, especially a common weedy grass, A. fatua, resembling the cultivated oat.
- steam whistle — a type of whistle sounded by a blast of steam, as used formerly in factories, on locomotives, etc
- sweet william — a pink, Dianthus barbatus, having clusters of small, variously colored flowers.
- tactical wire — wire entanglements used to break up attacking enemy formations or to keep them within the field of defensive fire.
- thankworthily — in a thankworthy way or manner
- the civil war — the war between the North (the Union) and the South (the Confederacy) in the U.S. (1861-65)
- town planning — city planning.
- training wall — an artificial embankment or wall for directing the course of a stream.
- tweet-a-holic — a person who is addicted to the Twitter website
- ultrawideband — a transmission technique using a very wide spectrum of frequencies that enables high-speed transfer of data
- unwhistleable — incapable of being whistled
- unworkability — the quality or state of being unworkable
- unwritten law — a law that rests for its authority on custom, judicial decision, etc., as distinguished from law originating in written command, statute, or decree.
- walk off with — to advance or travel on foot at a moderate speed or pace; proceed by steps; move by advancing the feet alternately so that there is always one foot on the ground in bipedal locomotion and two or more feet on the ground in quadrupedal locomotion.
- walk out with — to court or be courted by
- walk with god — to lead a godly, morally upright life
- walkie-talkie — a combined transmitter and receiver light enough to be carried by one person: developed originally for military use in World War II.
- walking stick — a stick held in the hand and used to help support oneself while walking.
- wall lighting — a system of lighting that is fixed onto a wall
- wall painting — mural painting executed by any of various techniques, as encaustic, tempera, fresco, or oil paint on canvas, often as an enhancement of the architecture of which the recipient wall is a part.
- walnut family — the plant family Juglandaceae, characterized by deciduous trees having alternate, pinnately compound leaves, male flowers in tassellike catkins and female flowers in clusters, and edible nuts enclosed in a thick-walled or leathery husk, and including the butternut, hickory, pecan, and walnut.
- walter piston — Walter, 1894–1976, U.S. composer.
- waltz matilda — to travel the road carrying one's swag
- warning light — a light that indicates danger