13-letter words containing u
- actualisation — Alternative spelling of actualization.
- actualization — the act or process of actualizing.
- acupuncturist — An acupuncturist is a person who performs acupuncture.
- acute disease — disease that progresses rapidly
- ad referendum — subject to agreement by others and finalization of details
- adder's-mouth — any of various orchids of the genus Malaxis that occur in all parts of the world except Australia and New Zealand and have small usually greenish flowers
- adenosquamous — Having both glandular (adenoid) and squamous characteristics.
- adjudications — Plural form of adjudication.
- adjustability — ability to adjust
- adjutant bird — either of two large carrion-eating storks, Leptoptilos dubius or L. javanicus, which are closely related and similar to the marabou and occur in S and SE Asia
- admeasurement — the act of admeasuring
- admensuration — Admeasurement.
- adularescence — (of certain gemstones, especially adularia) having a milky, bluish luster.
- adultolescent — a young adult or middle-aged person who has interests, traits, etc., that are usually associated with teenagers.
- adumbratively — In an adumbrative manner.
- advance guard — a military unit sent ahead of a main body to find gaps in enemy defences, clear away minor opposition, and prevent unexpected contact
- advent sunday — the first of the four Sundays of Advent, and the one that falls nearest to November 30
- adventuresome — Adventuresome means the same as adventurous.
- adventuresses — Plural form of adventuress.
- adventuristic — relating to adventurism
- adventurously — inclined or willing to engage in adventures; enjoying adventures.
- adverb clause — a subordinate clause that functions as an adverb within a main clause.
- advice column — In a newspaper or magazine, the advice column contains letters from readers about their personal problems, and advice on what to do about them.
- aerial survey — a survey carried out from the air, using an aeroplane or helicopter
- aeroacoustics — the study of the generation and transmittance of sound by fluid flow
- aerosinusitis — inflammation of the nasal sinuses caused by the effect on the sinuses of changes in atmospheric pressure.
- aerostructure — any separately manufactured unit, component, or section of an aircraft or other vehicle capable of flight
- affirming gun — a gun fired by a warship to signal its intention to search a merchant vessel.
- african union — an organization of African states established in 2002 as successor to the OAU; it aims to encourage economic development and political stability through increased cooperation between its members
- afterthoughts — Plural form of afterthought.
- agglutinating — Present participle of agglutinate.
- agglutination — the act or process of agglutinating
- agglutinative — tending to join or capable of joining
- agglutinogens — Plural form of agglutinogen.
- agriculturist — an agricultural expert
- agro-industry — the large-scale production, processing, and packaging of food using modern equipment and methods.
- agrobacterium — A soil bacterium, of the genus Agrobacterium, which can fix nitrogen, and causes the formation of crown galls in plants.
- ailurophiliac — Appropriate or pleasing to ailurophiles.
- air ambulance — An air ambulance is a helicopter or plane that is used for taking people to hospital.
- air pollution — contamination of the atmosphere
- air-lift pump — a pump that pumps liquid by injecting air into the lower end of an open pipe immersed in the liquid: often used in boreholes
- air-to-ground — operating between an aircraft in flight and a target on the ground
- airplane rule — aeroplane rule
- airplane turn — a midair turn made in the middle of a jump.
- aius locutius — a disembodied voice that warned the Romans of a coming invasion by the Gauls.
- ajax mountain — a peak on the Idaho-Montana border, in the Bitterroot Range of the Rocky Mountains. 10,900 feet (3,324 meters).
- albertosaurus — A giant fierce carnivorous tyrannosaurus-like dinosaur, of gemus Albertosaurus, discovered in Alberta, Canada.
- albizu campos — Pedro [pe-th raw] /ˈpɛ ðrɔ/ (Show IPA), 1891–1964, Puerto Rican political leader.
- albumen paper — a printing paper coated with albumen, salt, and citric acid and sensitized with silver nitrate, used c1850–80.
- albumen plate — a flexible zinc or aluminum printing plate coated with a photosensitive compound, used in offset printing of usually fewer than 50,000 copies.