12-letter words containing a, s, u
- nuclear test — a test carried out on a nuclear weapon to determine effectiveness, etc
- nucleocapsid — the nucleic acid core and surrounding capsid of a virus; the basic viral structure.
- nucleosidase — any of the class of enzymes that catalyze the hydrolysis of nucleosides.
- nucleotidase — a biochemical catalyst that facilitates the process of hydrolyzing or splitting a nucleotide and turning it into a phosphate and a nucleoside
- nugatoriness — Quality of being nugatory.
- nuisance tax — a tax paid in small but frequent amounts, usually by consumers.
- numbers game — Also called numbers, numbers game, numbers racket. an illegal daily lottery in which money is wagered on the appearance of certain numbers in some statistical listing or tabulation published in a daily newspaper, racing form, etc.
- numismatical — Alternative form of numismatic.
- numismatists — Plural form of numismatist.
- nuptial mass — a special mass said at a wedding.
- nuri as-said — 1888–1958, Iraqi soldier and statesman: prime minister of Iraq 14 times between 1930 and 1958: he died during a military coup
- nurse's aide — a person who assists professional nurses, as in a hospital, by performing such routine tasks as making beds and serving meals.
- nurserymaids — Plural form of nurserymaid.
- nurserywoman — a woman who owns or operates a plant nursery.
- nutmeg state — Connecticut (used as a nickname).
- oamaru stone — a kind of limestone, of building quality, found at Oamaru on South Island, New Zealand
- obdurateness — The characteristic of being obdurate; stubbornness.
- obfuscations — to confuse, bewilder, or stupefy.
- obscurantism — opposition to the increase and spread of knowledge.
- obscurantist — opposition to the increase and spread of knowledge.
- obscurations — Plural form of obscuration.
- obtuse angle — an angle greater than 90° but less than 180°.
- octastichous — relating to a particular coiled distribution of leaves on the stem that is characterized by having eight leaves per coil on the stem
- octopetalous — containing or consisting of eight petals
- octosepalous — having or consisting of eight sepals
- odd-man rush — an attacking move when the defence is outnumbered by the opposing team
- odontomatous — relating to an odontoma
- of substance — wealthy
- old guardism — political conservatism.
- old prussian — a Baltic language extinct since the 17th century. Abbreviation: OPruss.
- oleaginously — In an oleaginous manner.
- oligophagous — (especially of insects) eating only a few types of food.
- on all fours — all four limbs or extremities; the four legs or feet of an animal or both arms and both legs or both hands and both feet of a person: The cat rolled off the ledge but landed on all fours.
- oncornavirus — any of various RNA viruses that cause tumors in humans and other animals.
- ophiolatrous — of, relating to, or practising snake-worshipping
- ophiophagous — eating snakes.
- optoacoustic — relating to the relationship between light and sound
- oracularness — the state of being oracular
- oral surgery — the branch of dentistry or of surgery dealing with the surgical treatment or repair of various conditions of the mouth or jaws.
- orchard bush — open savanna country with occasional trees and scrub, as found north of the W African forest belt
- orchidaceous — belonging to the plant family Orchidaceae.
- orichalceous — relating to or resembling orichalc
- osco-umbrian — a group of languages, usually classified as Italic, that contains Oscan and Umbrian.
- ostentatious — characterized by or given to pretentious or conspicuous show in an attempt to impress others: an ostentatious dresser.
- otacousticon — (now rare) An instrument to aid hearing, such as an ear trumpet or hearing aid.
- out of phase — in an unsynchronized way
- out of scale — If something is out of scale with the things near it, it is too big or too small in relation to them.
- out of shape — person: unfit
- out-of-state — of, relating to, or from another state of the U.S.: a car with an out-of-state license plate; out-of-state vacationers.
- out-quarters — the outlying area of a building or district