15-letter words containing n, o, p, a, r
- apartment house — a building containing a number of residential apartments.
- apolipoproteins — Plural form of apolipoprotein.
- apprentice work — work done when young and a novice
- appropinquation — the action of approaching
- appropriateness — suitable or fitting for a particular purpose, person, occasion, etc.: an appropriate example; an appropriate dress.
- approval rating — approval of a politician as shown by opinion polls
- approximateness — The quality of being approximate.
- armaments depot — a store for armaments
- armour-piercing — capable of penetrating armour plate
- arms inspection — the official checking of a country's weapons and other military equipment, usually to check that international agreements have been respected
- arroz con pollo — a Latin American dish consisting of chicken and rice cooked usually with saffron
- assemblypersons — Plural form of assemblyperson.
- autotransplants — Plural form of autotransplant.
- away-going crop — a crop planted by a tenant that matures after the expiration of the tenancy and is rightfully the tenant's to harvest.
- back projection — a method of projecting pictures onto a translucent screen so that they are viewed from the opposite side, used esp in films to create the illusion that the actors in the foreground are moving
- backup rotation — (operating system) Any system for re-using backup media, e.g. magnetic tape. One extreme would be to use the same media for every backup (e.g. copy disk A to disk B), the other extreme would be to use new media every time. The trade-off is between the cost of buying and storing media and the ability to restore any version of any file. One example is the Grandfather, Father, Son (GFS) scheme.
- bandstop filter — A bandstop filter is a filter designed to eliminate all frequencies within a band of frequencies.
- banking product — one of the various services offered by a bank to its customers: mortgages, loans, insurance etc
- bear comparison — to be sufficiently similar in class or range to be compared with (something else), esp favourably
- ben day process — a method of adding texture, shading, or detail to line drawings by overlaying a transparent sheet of dots or any other pattern during platemaking
- black operation — a covert and undocumented military operation
- bladder campion — a European caryophyllaceous plant, Silene vulgaris, having white flowers with an inflated calyx
- blasting powder — a form of gunpowder made with sodium nitrate instead of saltpeter, used chiefly for blasting rock, ore, etc.
- branchial pouch — one of a series of rudimentary outcroppings of the inner pharyngeal wall, corresponding to the branchial grooves on the surface.
- break-in period — a period during which certain restrictions or moderation in operating should be followed, as the avoidance of high speed, rapid acceleration, or severe braking for a new automobile.
- breakeven point — a point at which the total revenue and total cost are equal
- breaking plough — a plough with a long shallow mouldboard for turning virgin land or sod land
- brompheniramine — a substance, C 16 H 19 BrN 2 , used as an antihistamine in the management of various allergies, as hay fever.
- camp counsellor — an adult supervisor assigned to a group of campers at a summer camp
- campaign ribbon — a distinctively colored ribbon, either on a small, narrow bar or in the form of a strip, representing a military campaign participated in by the wearer.
- campaign worker — a person who carries out duties for a political candidate or party, esp before an election
- cape horn fever — illness feigned by malingerers.
- capillarization — The formation and development of a network of capillaries to a part of the body; it is increased by aerobic exercise.
- car transporter — a vehicle for carrying automobiles
- cardinal points — the four main points of the compass: north, south, east, and west
- cardiopulmonary — of, relating to, or affecting the heart and lungs
- cast aspersions — If you cast aspersions on someone or something, you suggest that they are not very good in some way.
- cast-iron plant — any of several plants belonging to the genus Aspidistra, of the lily family, native to eastern Asia, especially A. eliator, having large evergreen leaves often striped with white, and grown as a houseplant.
- castanospermine — a substance obtained from the Australian chestnut or black bean tree
- castner process — a process for extracting sodium from sodium hydroxide, devised by Hamilton Young Castner (1858–98)
- catastrophising — Present participle of catastrophise.
- catastrophizing — Present participle of catastrophize.
- chairpersonship — a person who presides over a meeting, committee, board, etc.
- chandler period — the period of the oscillation (Chandler wobble) of the earth's axis, varying between 416 and 433 days.
- charleston peak — a mountain in SE Nevada: highest peak in the Spring Mountains. 11,919 feet (3635 meters).
- chloramphenicol — a broad-spectrum antibiotic used esp in treating typhoid fever and rickettsial infections: obtained from the bacterium Streptomyces venezuelae or synthesized. Formula: C11H12N2O5Cl2
- cholangiography — radiographic examination of the bile ducts after the introduction into them of a contrast medium
- choral speaking — recitation of poetry, dramatic pieces, etc. by a chorus of speakers
- cineangiography — the use of motion-picture recording to trace the passage of dye through blood vessels, for the diagnosis of heart and blood vessel disease
- cinematographed — a motion-picture projector.