12-letter words containing m, o, s
- bioterrorism — Bioterrorism is terrorism that involves the use of biological weapons.
- bird's mouth — a right-angled notch cut in the underside of a rafter for fitting over a longitudinal member, as a wall plate.
- black cosmos — a garden plant, Cosmos diversifolius, of Mexico, having small, dahlialike tubers and solitary flower heads with red disk flowers and velvety, dark-red or purplish ray flowers.
- blastomycete — any of a genus (Blastomyces) of yeastlike imperfect fungi that cause diseases in people and animals
- blind-emboss — blind-stamp.
- block system — the system whereby a railway is divided up into separate sections of track where only one train can travel at a time
- blood plasma — the pale yellow fluid portion of the blood; blood from which red and white blood cells and platelets have been removed
- blood sample — an amount of a person's blood taken from their body for use in medical tests
- blossom into — the flower of a plant, especially of one producing an edible fruit.
- boatsmanship — seamanship as applied to boats, especially rowboats and motorboats.
- body fascism — intolerance of those whose bodies do not conform to a particular view of what is desirable
- boehm system — a system of improved fingering and keying for the flute and clarinet, invented by the German musician Theobald Boehm (1794–1881).
- bog rosemary — any of several species (genus Andromeda) of evergreen shrubs of the heath family, native to cold bogs of North America and Europe, with pink flowers and narrow leaves
- bolshevikism — the doctrines, methods, or procedure of the Bolsheviks.
- bomb shelter — a shelter, usually underground, in which people take refuge from bomb attacks
- bombacaceous — of, relating to, or belonging to the Bombacaceae, a family of tropical trees, including the kapok tree and baobab, that have very thick stems, often with water-storing tissue
- bombay hills — a row of hills marking the southern boundary of greater Auckland on the North Island, New Zealand
- bonus number — (in the National Lottery) a number announced after the normal six numbers which influences the amount of prize money paid
- bonus scheme — a scheme in a company or other organization according to which employees receive a bonus if they meet specified targets
- book matches — safety matches made of paper and fastened into a small cardboard folder
- boom-or-bust — boom-and-bust.
- boomer state — Oklahoma
- booster pump — A booster pump is a pump which is used where pressure is low and needs to be increased.
- bosom friend — an intimate friend
- bottom grass — any grass that grows on bottoms or lowlands.
- bottom house — the open space beneath a house built upon high pillars
- bottom yeast — a yeast whose cells, in the manufacture of wine and lager beer, fall to the bottom as a sediment.
- bottomlessly — from a bottomless point of view
- boyoma falls — a series of seven cataracts in the NE Democratic Republic of Congo, on the upper River Congo: forms an unnavigable stretch of 90 km (56 miles), which falls 60 m (200 ft)
- brainstormer — a person who brainstorms
- bristlemouth — any of several small, deep-sea fishes of the family Gonostomatidae, having numerous sharp, slender teeth covering the jaws.
- bromhidrosis — the secretion of foul-smelling sweat.
- bronchospasm — an abnormal contraction of the bronchi resulting in restriction of the airway
- bulk modulus — a coefficient of elasticity of a substance equal to minus the ratio of the applied stress (p) to the resulting fractional change in volume (dV/V) in a specified reference state (dV/V is the bulk strain)
- calamitously — In a calamitous manner.
- call to arms — a command to report for active military duty.
- calorimeters — Plural form of calorimeter.
- calumniators — Plural form of calumniator.
- calumniously — in a calumnious manner
- camelopardus — a faint extensive constellation in the N hemisphere close to Ursa Major and Cassiopeia
- caméra stylo — the use of the camera as a means of personal expression, esp as practised by some directors of the New Wave
- cameraperson — a camera operator
- camp bastion — a large British military base in Helmand province, Afghanistan, built in 2006
- can of worms — a complicated problem
- canoe slalom — a competitive event in which a canoeist maneuvers through a slalom course, usually in white water.
- carol stream — a town in NE Illinois.
- cash economy — an economic system, or part of one, in which financial transactions are carried out in cash rather than via direct debit, standing order, bank transfer, or credit card
- causationism — the theory of universal causation
- cementitious — of, relating to, or characteristic of cement
- centimorgans — Plural form of centimorgan.