16-letter words containing n, t
- bicyclic terpene — (originally) any of a class of monocyclic hydrocarbons of the formula C 10 H 16 , obtained from plants.
- bidirectionality — capable of reacting or functioning in two, usually opposite, directions.
- binary operation — a mathematical operation in which two elements are combined to yield a single result: Addition and multiplication are binary operations on the set of real numbers.
- binet-simon test — an intelligence test that consists of questions, problems, and things to do, graded in terms of mental age
- binomial theorem — a mathematical theorem that gives the expansion of any binomial raised to a positive integral power, n. It contains n + 1 terms: (x + a)n = xn + nxn–1a + [n(n–1)/2] xn–2a2 +…+ (nk) xn–kak + … + an, where (nk) = n!/(n–k)!k!, the number of combinations of k items selected from n
- biodeterioration — biodegradation.
- bioenvironmental — pertaining to the environment of living organisms: Bioenvironmental engineers seek to reduce air and water pollution.
- biofortification — the process of breeding staple crops to have higher levels of essential nutrients, either through selective breeding or genetic modification: iron biofortification of rice; biofortification of wheat with zinc.
- biomagnification — biological magnification.
- biotechnological — Biotechnological means relating to biotechnology.
- biotic potential — the capacity of a population of organisms to increase in numbers under optimum environmental conditions.
- birchbark biting — a Native Canadian craft in which designs are bitten onto bark from birch trees
- bird in the hand — any warm-blooded vertebrate of the class Aves, having a body covered with feathers, forelimbs modified into wings, scaly legs, a beak, and no teeth, and bearing young in a hard-shelled egg.
- bird's-nest fern — a tropical fern, Asplenium nidus, having fronds arranged in clumps resembling a bird's nest.
- bird's-nest soup — a rich spicy Chinese soup made from the outer part of the nests of SE Asian swifts of the genus Collocalia
- birthday honours — (in Britain) honorary titles conferred on the official birthday of the sovereign
- birthday present — a gift given to someone on their birthday
- bite one's nails — to chew off the ends of one's fingernails
- bite your tongue — either of the two fleshy parts or folds forming the margins of the mouth and functioning in speech.
- bitter principle — any of various bitter-tasting substances, such as aloin, usually extracted from plants
- bitterroot range — range of the Rocky Mountains, along the Ida.-Mont. border: highest peak, c. 11,000 ft (3,353 m)
- black nightshade — a poisonous solanaceous plant, Solanum nigrum, a common weed in cultivated land, having small white flowers with backward-curved petals and black berry-like fruits
- blasting gelatin — a type of plastic dynamite containing about 7 percent of a cellulose nitrate, used chiefly in underwater work.
- blink comparator — an optical instrument used to detect small differences in two photographs of the same field or object by viewing them alternately, switching rapidly from one to the other.
- block and tackle — a hoisting device in which a rope or chain is passed around a pair of blocks containing one or more pulleys. The upper block is secured overhead and the lower block supports the load, the effort being applied to the free end of the rope or chain
- blow one's stack — to lose one's temper; fly into a rage
- blue in the face — the pure color of a clear sky; the primary color between green and violet in the visible spectrum, an effect of light with a wavelength between 450 and 500 nm.
- blue-winged teal — a small North American duck (Anas discors) found on ponds and rivers
- blunt instrument — something such as a hammer, used as a weapon
- board and batten — a siding consisting of wide boards or of sheets of plywood set vertically with butt joints covered by battens.
- boatswain's mate — a job classification in the US navy
- boatswain's pipe — a whistle used formerly to give orders on board ship
- bodily functions — physical processes such as urination and defecation
- bonneville flats — an area of salt flats in the W part of Great Salt Lake Desert, in NW Utah: site of automobile speed tests.
- boolean-operator — any operation in which each of the operands and the result take one of two values.
- boston cream pie — a cake of two layers with icing and a creamy filling
- boston tea party — a raid in 1773 made by citizens of Boston (disguised as Indians) on three British ships in the harbour as a protest against taxes on tea and the monopoly given to the East India Company. The contents of several hundred chests of tea were dumped into the harbour
- botanical garden — a place where collections of plants and trees are kept for scientific study and exhibition
- bound up in/with — If one thing is bound up with or in another, they are closely connected with each other, and it is difficult to consider the two things separately.
- boundary dispute — dispute between neighbours about the boundary between their properties
- bracknell forest — a unitary authority in SE England, in E Berkshire. Pop: 110 100 (2003 est). Area: 109 sq km (42 sq miles)
- bragg scattering — the diffraction phenomenon exhibited by a crystal bombarded with x-rays in such a way that each plane of the crystal lattice acts as a reflector (Bragg reflector)
- braking distance — the distance a vehicle travels from the point at which its brakes are applied to the point at which it comes to a stop
- branchiopneustic — breathing by means of gills, as certain aquatic insect larvae.
- brand acceptance — the extent to which consumers recognize and welcome a brand
- brandenburg gate — the only remaining city gate in Berlin, built by Friedrich Wilhelm II of Prussia in 1788–1791 as a symbol of peace and now one of the city's landmarks
- brass instrument — a musical wind instrument of brass or other metal with a cup-shaped mouthpiece, as the trombone, tuba, French horn, trumpet, or cornet.
- brave west winds — the strong west and west-northwest winds blowing between latitudes 40° S and 60° S.
- bread and butter — Something that is the bread and butter of a person or organization is the activity or work that provides the main part of their income.
- bread-and-butter — providing a livelihood or basic source of income; supplying the basic needs of life: a bread-and-butter job; the agency's bread-and-butter account.