13-letter words containing a, u, t, o
- autoschediaze — to do or act with little forethought or preparation
- autostability — the property of being stable either as a result of inherent characteristics or of built-in devices
- autotoxicosis — autointoxication.
- autumn crocus — a liliaceous plant, Colchicum autumnale, of Europe and N Africa having pink or purplish autumn flowers
- averruncation — the act of averting or turning away
- aviation fuel — fuel used to power airplanes
- back mutation — the reversion of a mutant to the original phenotype
- badminton cup — a long refreshing drink of claret with soda water and sugar
- bang on about — If someone bangs on about something, they keep talking about it in a boring or annoying way.
- bank discount — interest on a loan deducted from the principal amount when the loan is made and based on the loan's face value
- bankrupt worm — a roundworm (genus Trichostrongylus) that is an intestinal parasite of birds and mammals, especially devastating to young livestock.
- barcoo salute — a movement of the hand to brush flies away from the face
- barosinusitis — aerosinusitis.
- battle it out — If one group or person battles it out with another, they take part in a fight or contest against each other until one of them wins or a definite result is reached. You can also say that two groups or two people battle it out.
- battlegrounds — Plural form of battleground.
- be nuts about — to be greatly in love with
- be wild about — If you are wild about someone or something, you like them very much.
- beacon status — a ranking awarded by the government to an organization, rendering it eligible for extra funding, and aimed at encouraging organizations to share good practice with each other
- beauteousness — The state or quality of being beauteous.
- beauty editor — the person in charge of a section of newspaper or magazine devoted to cosmetics, etc
- beauty parlor — A beauty parlor is a place where women can go to have beauty treatments, for example, to have their hair, nails, or makeup done.
- benito juarez — Benito (Pablo) [be-nee-taw pah-vlaw] /bɛˈni tɔ ˈpɑ vlɔ/ (Show IPA), 1806–72, president of Mexico 1857–72.
- beta function — a function of two variables, usually expressed as an improper integral and equal to the quotient of the product of the values of the gamma function at each variable divided by the value of the gamma function at the sum of the variables.
- beta globulin — a blood plasma protein that is separable from other globulins by electrophoresis.
- bibliolatrous — characterized by bibliolatry
- bio-autograph — an analytical technique in which organic compounds are separated by chromatography and identified by studying their effects on microorganisms.
- bioaccumulate — (of substances, esp toxins) to build up within the tissues of organisms
- bioautography — an analytical technique in which organic compounds are separated by chromatography and identified by studying their effects on microorganisms.
- bioequivalent — the condition in which different formulations of the same drug or chemical are equally absorbed when taken into the body.
- black country — a district in the English Midlands, around Birmingham: so called from the soot and grime produced by the many local industries.
- blue asbestos — a common name for the mineral crocidolite, a variety of asbestos found in Africa and Australia
- boom-and-bust — characteristic of a period of economic prosperity followed by a depression.
- bouncy castle — A bouncy castle is a large object filled with air, often in the shape of a castle, which children play on at a fairground or other outdoor event.
- bouquet garni — A bouquet garni is a bunch of herbs that are tied together and used in cooking to add flavour to the food.
- boutros-ghali — ˈBoutros (ˈbutroʊs ) ; bo̅oˈtrōs) 1922- ; Egypt. diplomat: secretary-general of the United Nations (1992-96)
- brachypterous — having very short or incompletely developed wings
- brazen it out — to act in a bold way as if one need not be ashamed
- break through — If you break through a barrier, you succeed in forcing your way through it.
- breakthroughs — a military movement or advance all the way through and beyond an enemy's front-line defense.
- brown mustard — black mustard. See under mustard (def 2).
- brutalization — to make brutal.
- bud variation — any variation in a bud due to changes in either its genetic composition or environment or both such that the resulting flower, fruit, or shoot differs from others of the same plant or species.
- buffalo cloth — a heavyweight woolen fabric constructed in twill weave and having a shaggy pile.
- bulbourethral — of or relating to the rounded mass of tissue surrounding the urethra at the root of the penis.
- bums on seats — If the organizers of an event such as a concert want to put bums on seats, they want a lot of people to attend it.
- buoyancy tank — an enclosed air-filled section of a boat, ship or hovercraft designed to keep it afloat and prevent it from sinking
- buoyant force — the law that a body immersed in a fluid is buoyed up by a force (buoyant force) equal to the weight of the fluid displaced by the body.
- buster collar — a round collar, similar to a lampshade in shape, that is fitted round the neck of an animal or bird, for example to prevent it removing or interfering with a dressing or other treatment
- busto arsizio — a city in Lombardy, N Italy.
- butanoic acid — kind of acid