12-letter words containing a, s, m, p
- balsam apple — an ornamental cucurbitaceous vine, Momordica balsamina, of the Old World tropics, with yellow flowers and orange egg-shaped fruits
- base jumping — a sport in which a participant parachutes from any of a variety of fixed objects such as high buildings, cliffs, etc
- beam compass — an instrument for drawing large circles or arcs, consisting of a horizontal beam along which two vertical legs slide
- beamsplitter — Alternative spelling of beam splitter.
- bedside lamp — a lamp beside a bed
- 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
- boatsmanship — seamanship as applied to boats, especially rowboats and motorboats.
- brinkmanship — Brinkmanship is a method of behaviour, especially in politics, in which you deliberately get into dangerous situations which could result in disaster but which could also bring success.
- bronchospasm — an abnormal contraction of the bronchi resulting in restriction of the airway
- camelopardus — a faint extensive constellation in the N hemisphere close to Ursa Major and Cassiopeia
- cameraperson — a camera operator
- camp bastion — a large British military base in Helmand province, Afghanistan, built in 2006
- camp springs — a city in central Maryland, near Washington, D.C.
- camping site — A camping site is the same as a campsite.
- campshedding — to line (the bank of a river) with campshot.
- cape jasmine — a widely cultivated gardenia shrub, Gardenia jasminoides
- cash payment — an immediate payment in cash
- chairmanship — The chairmanship of a committee or organization is the fact of being its chairperson. Someone's chairmanship can also mean the period during which they are chairperson.
- chamaephytes — Plural form of chamaephyte.
- championship — A championship is a competition to find the best player or team in a particular sport.
- chromatopsia — an irregularity in the ability to see colours properly
- chromoplasts — Plural form of chromoplast.
- cladosporium — any of the species of fungi in the genus Cladosporium
- clapham sect — a group of early 19th-century Church of England evangelicals advocating personal piety, the abolition of slavery, etc
- 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)
- combat pants — trousers: military style
- come to pass — to take place
- comeuppances — Plural form of comeuppance.
- comma splice — comma fault.
- command post — A command post is a place from which a commander in the army controls and organizes his forces.
- common pleas — in some U.S. states, a court having general and original jurisdiction over civil and criminal trials
- commonplaces — Plural form of commonplace.
- compact disc — Compact discs are small shiny discs that contain music or computer information. The abbreviation CD is also used.
- compact disk — an optical disk approximately 4.75 inches (12 cm) in diameter, on which a program, data, music, etc., is digitally encoded for a laser beam to scan, decode, and transmit to a playback system, computer monitor, or television set. Abbreviation: CD.
- comparatists — Plural form of comparatist.
- comparatives — Plural form of comparative.
- compartments — Plural form of compartment.
- compass card — a compass in the form of a card that rotates so that "0°" or "North" points to magnetic north
- compass rose — a circle or decorative device printed on a map or chart showing the points of the compass measured from true north and usually magnetic north
- compassioned — a feeling of deep sympathy and sorrow for another who is stricken by misfortune, accompanied by a strong desire to alleviate the suffering.
- compensating — to recompense for something: They gave him ten dollars to compensate him for his trouble.
- compensation — Compensation is money that someone who has experienced loss or suffering claims from the person or organization responsible, or from the state.
- compensative — serving to compensate, as for loss, lack, or injury.
- compensatory — Compensatory payments involve money paid as compensation.
- compilations — Plural form of compilation.
- complainants — Plural form of complainant.
- complainings — complaints
- complaisance — deference to the wishes of others; willing compliance
- complex salt — a salt that contains one or more complex ions