18-letter words containing a, c, u, m
- pyromucic aldehyde — furfural.
- quantum efficiency — the number of electrons released by a photocell per photon of incident radiation of a given energy
- quantum statistics — the branch of statistical mechanics that incorporates quantum mechanics.
- quasi-metaphysical — pertaining to or of the nature of metaphysics.
- quick off the mark — If you are quick off the mark, you are quick to understand or respond to something. If you are slow off the mark, you are slow to understand or respond to something.
- quinacrine mustard — a nitrogen mustard derived from mepacrine and used as a stain for chromosomes
- radiocommunication — communication by means of radio waves
- real-time computer — a computer that can process data or information almost immediately
- reciprocating pump — A reciprocating pump is a pump which uses a backward and forward movement to move a fluid.
- recruitment agency — company that places job candidates
- redundancy payment — a sum of money given by an employer to an employee who has been made redundant: usually calculated on the basis of the employee's rate of pay and length of service
- remembrance sunday — the second Sunday in November, which is the Sunday closest to November 11, the anniversary of the armistice of 1918 that ended World War I, on which the dead of both World Wars are commemorated
- repayment schedule — a document detailing the specific terms of a borrower's loan, such as monthly payment, interest rate, due dates etc
- resuscitation room — an intensive care unit
- roman architecture — buildings in style of ancient Rome
- room occupancy tax — Room occupancy tax is a tax that guests at a hotel have to pay in order to stay there.
- running commentary — non-stop description of sth
- rural municipality — any lightly settled area in Canada lacking a local elected government and administered directly by a provincial government.
- sampling frequency — sample rate
- second triumvirate — the coalition and joint rule of the Roman Empire by Antony, Lepidus, and Octavian, begun in 43 bc
- secondary consumer — (in the food chain) a carnivore that feeds only upon herbivores.
- security agreement — business: contract
- semicircular canal — any of the three curved tubular canals in the labyrinth of the ear, associated with the sense of equilibrium.
- small claims court — a special court established to handle small claims or debts, usually without the services of lawyers.
- small-claims court — a special court established to handle small claims or debts, usually without the services of lawyers.
- sodium bicarbonate — a white, crystalline, water-soluble solid, in powder or granules, NaHCO 3 , usually prepared by the reaction of soda ash with carbon dioxide or obtained from the intermediate product of the Solvay process by purification: used chiefly in the manufacture of sodium salts, baking powder, and beverages, as a laboratory reagent, as a fire extinguisher, and in medicine as an antacid.
- sodium thiocyanate — a white powder or colorless, deliquescent crystals, NaSCN, used chiefly in organic synthesis and in medicine in the treatment of hypertension.
- southern cameroons — German Kamerun. a region in W Africa: a German protectorate 1884–1919; divided in 1919 into British and French mandates.
- spackling compound — spackle
- specimen signature — a signature to be compared to an original signature in order to verify someone's identity
- status asthmaticus — a severe attack of asthma in which the patient may die from respiratory failure if not treated with inhaled oxygen or other appropriate measures
- structural formula — a chemical formula showing the linkage of the atoms in a molecule diagrammatically, as H–O–H.
- subatomic particle — physics:
- submarine sandwich — a sandwich made with a long cylindrical bread roll
- subsidiary company — a company whose controlling interest is owned by another company.
- subsistence farmer — a farmer who consumes most of the produce he grows, leaving little or nothing to be marketed
- summary proceeding — a mode of trial authorized by statute to be held before a judge without the usual full hearing.
- surveyor's compass — an instrument used by surveyors for measuring azimuths.
- survival mechanism — something you or your body does automatically, in order to survive in a dangerous or unpleasant situation
- teaching equipment — teaching aids
- tele-communication — Sometimes, telecommunication. (used with a singular verb) the transmission of information, as words, sounds, or images, usually over great distances, in the form of electromagnetic signals, as by telegraph, telephone, radio, or television.
- telecommunications — Sometimes, telecommunication. (used with a singular verb) the transmission of information, as words, sounds, or images, usually over great distances, in the form of electromagnetic signals, as by telegraph, telephone, radio, or television.
- the black mountain — a mountain range in S Wales, in E Carmarthenshire and W Powys. Highest peak: Carmarthen Van, 802 m (2632 ft)
- the hunger marches — a number of processions by unemployed workers in the 1930s to protest against unemployment and deprivation
- thermonuclear bomb — hydrogen bomb.
- to cut the mustard — If someone does not cut the mustard, their work or their performance is not as good as it should be or as good as it is expected to be.
- to meet your match — If you meet your match, you find that you are competing or fighting against someone who you cannot beat because they are as good as you, or better than you.
- under-compensation — to compensate or pay less than is fair, customary, or expected.
- unearned increment — the increase in the value of property, especially land, due to natural causes, as growth of population, rather than to any labor or expenditure by the owner.
- unfair competition — acts done by a seller to confuse or deceive the public with intent to acquire a larger portion of the market, as by cutting prices below cost, misleading advertising, selling a spurious product under a false identity, etc.