13-letter words containing c, o, r, a
- noncreativity — a lack of creativity
- nondecreasing — not decreasing.
- nondemocratic — pertaining to or of the nature of democracy or a democracy.
- nonelectrical — Not electrical; not operated by electricity.
- nonhistorical — Not based on or drawn from history.
- nonhysterical — not hysterical or funny
- nonincreasing — not increasing.
- nonliturgical — Not liturgical.
- nonobservance — absence or lack of observance.
- nonparametric — (of a test or method) not requiring assertions about parameters or about the form of the underlying distribution.
- nonperiodical — a magazine or other journal that is issued at regularly recurring intervals.
- nonpracticing — not currently practicing one's profession, religion, etc.: a nonpracticing physician.
- nonpractising — of or relating to a person who no longer observes or pursues his or her religious faith
- nonprovincial — Not restricted to a small region; not done in isolation.
- nonreciprocal — given or felt by each toward the other; mutual: reciprocal respect.
- nonrecordable — Not recordable.
- nonrecyclable — Not recyclable.
- nonresistance — the policy or practice of not resisting violence or established authority, even when tyrannical, by force.
- nonretractile — capable of being drawn back or in, as the head of a tortoise; exhibiting the power of retraction.
- nonstructural — Not structural; not related to a structure.
- nontheatrical — not relating to the theatre
- noradrenergic — Having the quality of noradrenaline.
- normal school — (formerly) a school offering a two-year course and certification to high-school graduates preparing to be teachers, especially elementary-school teachers.
- norman french — Also called Norman. the French dialect of the Normans or of Normandy.
- normocephalic — Having a normal sized head; neither macrocephalic nor microcephalic; mesocephalic.
- north african — the northern part of Africa, especially the region north of the tropical rain forest and comprised of Morocco, Algeria, Tunisia, Libya, and that part of Egypt west of the Gulf of Suez.
- north america — the northern continent of the Western Hemisphere, extending from Central America to the Arctic Ocean. Highest point, Mt. McKinley, 20,300 feet (6187 meters); lowest, Death Valley, 276 feet (84 meters) below sea level. About 9,360,000 sq. mi. (24,242,400 sq. km).
- north channel — a strait between SW Scotland and NE Ireland. 14 miles (23 km) wide at the narrowest point.
- north chicago — a city in NE Illinois, on Lake Michigan.
- northern cape — the largest but least populated province in South Africa, in the NW part of the country; created in 1994 from part of Cape Province: agriculture, mining (esp diamonds). Capital: Kimberley. Pop: 1 145 861 (2011 est). Area: 139 703 sq km (361 830 sq miles)
- norway spruce — a European spruce, Picea abies, having shiny, dark-green needles, grown as an ornamental.
- notary public — a public officer or other person authorized to authenticate contracts, acknowledge deeds, take affidavits, protest bills of exchange, take depositions, etc.
- nouveau riche — a person who is newly rich: the ostentation of the nouveaux riches of the 1920s.
- novocentenary — a nine-hundredth anniversary
- novocherkassk — a city in the SW Russian Federation in Europe, NE of Rostov.
- nuclear force — strong interaction
- nuclear power — power derived from nuclear energy.
- numerological — Of, pertaining to, or based on numerology.
- obstacle race — a foot race in which the contestants are prevented in a specific way from covering the full course at top speed, as by having hurdles to jump, sacks enclosing the legs, or potatoes to pick up.
- obstetrically — (medicine) In terms of obstetrics.
- obstetricians — Plural form of obstetrician.
- occam's razor — the maxim that assumptions introduced to explain a thing must not be multiplied beyond necessity.
- ocean springs — a town in SE Mississippi.
- oceanic crust — the brown, hard outer portion or surface of a loaf or slice of bread (distinguished from crumb).
- oceanic ridge — any section of the narrow, largely continuous range of submarine mountains that extends into all the major oceans and at which new oceanic lithosphere is created by the rise of magma from the earth's interior
- oceanographer — the branch of physical geography dealing with the ocean.
- oceanographic — the branch of physical geography dealing with the ocean.
- ochlocratical — Pertaining to ochlocracy.
- octane number — (of gasoline) a designation of antiknock quality, numerically equal to the percentage of isooctane by volume in a mixture of isooctane and normal heptane that matches the given gasoline in antiknock characteristics.
- octane-rating — (of gasoline) a designation of antiknock quality, numerically equal to the percentage of isooctane by volume in a mixture of isooctane and normal heptane that matches the given gasoline in antiknock characteristics.