18-letter words containing u, t, h, a
- chambered nautilus — nautilus (def 1).
- change the subject — to select a new topic of conversation
- character-building — improving certain good or useful traits in a person's character, esp self-reliance, endurance, and courage
- charge conjugation — the mathematical operation of replacing every elementary particle by its antiparticle. Symbol: C.
- charge of quarters — a member of the armed forces who handles administration in his or her unit, esp after duty hours
- charismatic church — a church that emphasizes communal prayer and the charismatic gifts of speaking in tongues, healing, etc
- chartered surveyor — (in Britain) a surveyor who is registered with the Royal Institution of Chartered Surveyors as having the qualifications, training, and experience to satisfy their professional requirements
- chebyshev equation — Tchebycheff equation.
- chocolate-coloured — dark brown
- chukchi-kamchatkan — Chukotian.
- church of scotland — the established church in Scotland, Calvinist in doctrine and Presbyterian in constitution
- circular breathing — a technique for sustaining a phrase on a wind instrument, using the cheeks to force air out of the mouth while breathing in through the nose
- claustrophobically — In a claustrophobic way.
- colour photography — the art or process of taking and developing photographs in colour
- combustion chamber — an enclosed space in which combustion takes place, such as the space above the piston in the cylinder head of an internal-combustion engine or the chambers in a gas turbine or rocket engine in which fuel and oxidant burn
- community hospital — (in the US) a local hospital
- congregate housing — a type of housing in which each individual or family has a private bedroom or living quarters but shares with other residents a common dining room, recreational room, or other facilities.
- connected subgraph — (mathematics) A connected graph consisting of a subset of the nodes and edges of some other graph.
- continuation sheet — (in a document) a page that continues from the one before it, containing similar information
- cornucopian thesis — the belief that, as long as science and technology continue to advance, growth can continue for ever because these new advances create new resources
- corpus christi bay — a bay in S Texas, at the mouth of the Nueces River.
- corpuscular theory — the theory, originally proposed by Newton, and revived with the development of the quantum theory, that light consists of a stream of particles
- countertherapeutic — Working against a therapy.
- cutthroat contract — a form of contract bridge for four persons in which partners are decided by the bidding.
- death-valley curve — a curve on a graph showing how the capital of a new company plotted against time declines sharply as the venture capital is used up before income reaches predicted levels
- dermot macmurrough — ?1110–71, king of Leinster, who, by enlisting the support of the English to win back his kingdom, was responsible for the English conquest of Ireland
- destruct mechanism — a mechanism that causes the destruction of a rocket or missile when activated
- devil's paintbrush — a perennial European hawkweed (Hieracium aurantiacum) with leafless flower stalks bearing a cluster of orange-red heads: now a common weed in N U.S. and Canada
- diatomaceous earth — an unconsolidated form of diatomite
- digital humanities — (used with a singular verb) the study of literature, philosophy, etc., as facilitated by computer technology or digital media: Digital humanities uses data analysis to find patterns in large bodies of text. the set of methodologies used in such scholarship.
- diplomatic shuttle — a series of diplomatic visits to other states made by an official, such as an ambassador or envoy
- disodium phosphate — sodium phosphate (def 2).
- dispatch documents — documents sent with a parcel, etc, detailing information such as contents, delivery address, etc
- distinguishability — to mark off as different (often followed by from or by): He was distinguished from the other boys by his height.
- double achievement — a representation of the arms of a husband beside those of his wife such that a difference of rank between them is shown.
- drug on the market — Pharmacology. a chemical substance used in the treatment, cure, prevention, or diagnosis of disease or used to otherwise enhance physical or mental well-being.
- eat your heart out — Anatomy. a hollow, pumplike organ of blood circulation, composed mainly of rhythmically contractile smooth muscle, located in the chest between the lungs and slightly to the left and consisting of four chambers: a right atrium that receives blood returning from the body via the superior and inferior vena cavae, a right ventricle that pumps the blood through the pulmonary artery to the lungs for oxygenation, a left atrium that receives the oxygenated blood via the pulmonary veins and passes it through the mitral valve, and a left ventricle that pumps the oxygenated blood, via the aorta, throughout the body.
- electrotherapeutic — Relating to electrotherapeutics.
- established church — a Church that is officially recognized as a national institution, esp the Church of England
- ethnomusicological — Relating to or pertaining to ethnomusicology.
- euclid's algorithm — (algorithm) (Or "Euclidean Algorithm") An algorithm for finding the greatest common divisor (GCD) of two numbers. It relies on the identity gcd(a, b) = gcd(a-b, b) To find the GCD of two numbers by this algorithm, repeatedly replace the larger by subtracting the smaller from it until the two numbers are equal. E.g. 132, 168 -> 132, 36 -> 96, 36 -> 60, 36 -> 24, 36 -> 24, 12 -> 12, 12 so the GCD of 132 and 168 is 12. This algorithm requires only subtraction and comparison operations but can take a number of steps proportional to the difference between the initial numbers (e.g. gcd(1, 1001) will take 1000 steps).
- executive chairman — the most senior internal position within a company, combining the duties of chairman and chief executive
- exhaustive testing — (programming) Executing a program with all possible combinations of inputs or values for program variables.
- fall to the ground — (of a plan, theory, etc) to be rendered invalid, esp because of lack of necessary information
- flash butt welding — a method of welding metal edge-to-edge with a powerful electric flash followed by the application of pressure.
- foundling hospital — an institutional home for foundlings.
- fourth commandment — “Remember the sabbath day, to keep it holy”: fourth of the Ten Commandments.
- fourth normal form — database normalisation
- fracture toughness — The fracture toughness of a material is how likely it is to resist fracture.
- from hand to mouth — the terminal, prehensile part of the upper limb in humans and other primates, consisting of the wrist, metacarpal area, fingers, and thumb.