18-letter words containing q, a
- quarterlife crisis — a crisis that may be experienced in one's twenties, involving anxiety over the direction and quality of one's life
- quartz-iodine lamp — a type of tungsten-halogen lamp containing small amounts of iodine and having a quartz envelope, operating at high temperature and producing an intense light for use in car headlamps, etc
- quasi-metaphysical — pertaining to or of the nature of metaphysics.
- quevedo y villegas — Francisco Gómez de. 1580–1645, Spanish poet and writer, noted for his satires and the picaresque novel La historia de la vida del Buscón (1626)
- 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
- quite the contrary — not at all, the very opposite
- relative frequency — the ratio of the number of times an event occurs to the number of occasions on which it might occur in the same period.
- sampling equipment — Sampling equipment is equipment which is used to remove small amounts of something for analysis and monitoring.
- sampling frequency — sample rate
- schwarz inequality — Also called Cauchy's inequality. the theorem that the inner product of two vectors is less than or equal to the product of the magnitudes of the vectors.
- separate but equal — pertaining to a racial policy, formerly practiced in some parts of the United States, by which black people could be segregated if granted equal opportunities and facilities, as for education, transportation, or jobs.
- st. peter's square — a square surrounded by colonnades, forming a boundary of and an entrance to Vatican City, leading to St. Peter's: designed by Giovanni Bernini and built during the 17th century.
- super royal quarto — a book size, 101⁄4 by 131⁄2 inches
- teaching equipment — teaching aids
- the mosque of omar — the mosque in Jerusalem, Israel, built in 691 ad by caliph 'Abd al-Malik: the third most holy place of Islam; stands on the Temple Mount alongside the al-Aqsa mosque
- the queen of sheba — a queen of the Sabeans, who visited Solomon (I Kings 10:1–13)
- three-quarter time — the meter of a musical composition having a time signature of 3/4 and three quarter notes or their equivalent in each measure.
- tranquillizer dart — a dart filled with a tranquillizer that is shot from a gun in order to temporarily sedate an animal so that it may be handled safely
- traveller's cheque — Traveller's cheques are cheques that you buy at a bank and take with you when you travel, for example so that you can exchange them for the currency of the country that you are in.
- trente et quarante — rouge et noir.
- ultralow frequency — an electromagnetic wave with a frequency between 300 and 3000 hertz. Abbreviation: ULF, ulf.