14-letter words containing m, u
- block mountain — a mountain produced by faulting and the uplifting of large blocks of rock
- blue mountains — a mountain range in the US, in NE Oregon and SE Washington. Highest peak: Rock Creek Butte, 2773 m (9097 ft)
- blue-eyed mary — a blue-flowered boraginaceous plant, Omphalodes verna, native to S Europe and cultivated in Britain
- bouleversement — an overthrow or reversal; violent turmoil
- bounce message — A notification message returned to the sender by a site unable to relay e-mail to the intended recipient or the next link in a bang path. Reasons might include a nonexistent or misspelled user name or a down relay site. Bounce messages can themselves fail, with occasionally ugly results; see sorcerer's apprentice mode and software laser. The terms "bounce mail" and "barfmail" are also common.
- bound moisture — Bound moisture is liquid in a solid, which exerts a vapor pressure that is less than the pure liquid would do at the same temperature.
- bremsstrahlung — the radiation produced when an electrically charged particle, esp an electron, is slowed down by the electric field of an atomic nucleus or an atomic ion
- british museum — a museum in London, founded in 1753: contains one of the world's richest collections of antiquities and (until 1997) most of the British Library
- broad-spectrum — effective against a wide variety of diseases or microorganisms
- broom cupboard — a small cupboard or closet for storing brooms, mops, etc
- bubble chamber — a device that enables the tracks of ionizing particles to be photographed as a row of bubbles in a superheated liquid. Immediately before the particles enter the chamber the pressure is reduced so that the ionized particles act as centres for small vapour bubbles
- bubble company — a company whose shares are highly valued and then plummet
- bug-compatible — Said of a design or revision that has been badly compromised by a requirement to be compatible with fossils or misfeatures in other programs or (especially) previous releases of itself. "MS-DOS 2.0 used \ as a path separator to be bug-compatible with some cretin's choice of / as an option character in 1.0."
- bumper sticker — A bumper sticker is a small piece of paper or plastic with words or pictures on it, designed for sticking onto the back of your car. It usually has a political, religious, or humorous message.
- bungee jumping — If someone goes bungee jumping, they jump from a high place such as a bridge or cliff with a long piece of strong elastic cord tied around their ankle connecting them to the bridge or cliff.
- bungee-jumping — the sport of jumping off a high structure to which one is attached by bungee cords, so that the body springs back just short of hitting the ground or water.
- buteyko method — a breath control technique used to prevent hyperventilation and treat asthma without drugs
- butterfly bomb — Military. a small, aerial, antipersonnel bomb with two folding wings that revolve, slowing the rate of descent and arming the fuze.
- buttermilk sky — a cloudy sky resembling the mottled or clabbered appearance of buttermilk.
- buyer's market — When there is a buyer's market for a particular product, there are more of the products for sale than there are people who want to buy them, so buyers have a lot of choice and can make prices come down.
- buyers' market — a market in which goods and services are plentiful and prices relatively low.
- buying manager — The buying manager of a store is a senior employee whose job is to manage the purchase and delivery of products and supplies, maintaining stock levels.
- by the numbers — in prescribed sequence of movements and accompanied by a count
- cadmium bronze — an alloy of copper with about 1 percent cadmium.
- cadmium orange — a yellow color approaching orange.
- cadmium yellow — a very vivid yellow containing cadmium sulphide
- cahokia mounds — the largest group of prehistoric Indian earthworks in the US, located northeast of East St Louis
- calumniousness — Calumny.
- cambridge blue — a lightish blue colour
- camera obscura — a darkened chamber or small building in which images of outside objects are projected onto a flat surface by a convex lens in an aperture
- camillo cavour — Camillo Benso di [kah-meel-law ben-saw dee] /kɑˈmil lɔ ˈbɛn sɔ di/ (Show IPA), 1810–61, Italian statesman: leader in the unification of Italy.
- camouflageable — able to be camouflaged
- camp counselor — activities supervisor
- campanulaceous — of, relating to, or belonging to the Campanulaceae, a family of temperate and subtropical plants, including the campanulas, having bell-shaped nodding flowers
- camphor laurel — an Australian name for the camphor tree, now occurring in the wild in parts of Australia
- campylotropous — (of an ovule) curved so that the micropyle and funiculus almost touch
- caprimulgiform — Of or pertaining to the taxonomic order Caprimulgiformes.
- cardiac muscle — a specialized form of striated muscle occurring in the hearts of vertebrates.
- carpet muncher — lesbian
- catechumenship — the office or position of a catechumen
- censure motion — a motion in a deliberative body to censure someone
- charles sumner — Charles, 1811–74, U.S. statesman.
- check-out time — the time by which one has to check out of a hotel
- chemical abuse — the habitual use of a mood-altering drug, alcoholic beverage, etc.
- chemoautotroph — an organism that obtains energy through chemoautotrophy
- chest-thumping — the act or practice of boasting.
- cholera morbus — gastroenteritis
- chondrocranium — the cartilaginous structure that, in early development, envelops the brain
- christmas bush — any of various trees or shrubs flowering at Christmas and used for decoration
- christmas club — a savings account in a bank in which regular deposits are made, usually throughout one year, as to provide funds for Christmas shopping.