12-letter words containing o, s, m, l
- 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.
- bolshevikism — the doctrines, methods, or procedure of the Bolsheviks.
- bomb shelter — a shelter, usually underground, in which people take refuge from bomb attacks
- bombay hills — a row of hills marking the southern boundary of greater Auckland on the North Island, New Zealand
- 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)
- bristlemouth — any of several small, deep-sea fishes of the family Gonostomatidae, having numerous sharp, slender teeth covering the jaws.
- 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
- 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.
- charm school — a school teaching manners and social skills
- chaulmoogras — Plural form of chaulmoogra.
- chord symbol — any of a series of letters and numerals, used as a shorthand indication of chords, esp in jazz, folk, or pop music
- chrome steel — any of various hard rust-resistant steels containing chromium
- chromoplasts — Plural form of chromoplast.
- chrysomelids — Plural form of chrysomelid.
- chylomicrons — Plural form of chylomicron.
- circumfluous — flowing all around
- cirrocumulus — a high cloud of ice crystals grouped into small separate globular masses, usually occurring above 6000 metres (20 000 feet)
- cladosporium — any of the species of fungi in the genus Cladosporium
- claims ratio — The claims ratio is the percentage of claims costs incurred in relation to the premiums earned.
- clamourously — Archaic spelling of clamorously.
- clams casino — broiled clams topped with garlic butter, bacon, bread crumbs, etc. and served in their bottom shells
- class method — (programming) 1. A method that operates on a class object (an object of class "class"). A class method is really just an ordinary object method that happens to operate on class objects. A class method might, for example, return a list of objects representing the methods and attributes of the given class. 2. A static method.
- cleistogamic — Alternative form of cleistogamous.
- clintonomics — (used with a singular verb) the economic policies set forth by President Bill Clinton.
- clonic spasm — Pathology. a sudden, abnormal, involuntary muscular contraction, consisting of a continued muscular contraction (tonic spasm) or of a series of alternating muscular contractions and relaxations (clonic spasm)
- close combat — the act of fighting at close quarters
- close helmet — a completely closed helmet of the late 15th century and after, having a facial defense composed of a visor and beaver or of a visor, ventail, and beaver attached to a pivot on each side.
- closemouthed — not talking much; telling little; taciturn
- closet drama — drama suitable for reading rather than performing
- closing time — Closing time is the time when something such as a shop, library, or pub closes and people have to leave.
- clothes moth — any of various tineid moths, esp Tineola bisselliella, the larvae of which feed on wool or fur
- cluster bomb — A cluster bomb is a type of bomb which is dropped from an aircraft. It contains a large number of smaller bombs that spread out before they hit the ground.
- coalitionism — the principle of governing by coalition
- collectivism — Collectivism is the political belief that a country's industries and services should be owned and controlled by the state or by all the people in a country. Socialism and communism are both forms of collectivism.
- collegialism — the theory that the church's highest authority is its collective membership
- collembolans — Plural form of collembolan.
- collembolous — of or relating to colembolans