12-letter words containing a, b, i, r, t
- multilobular — having several or many lobules.
- multitubular — Having many tubes.
- musterbation — Alt form musturbation.
- musturbation — (psychology) The compulsive insistence that things ought to be a particular way.
- mycobacteria — Plural form of mycobacterium.
- namib desert — a desert region in SW Africa, extending along the coast from SW Angola to W South Africa. 1200 miles (1930 km) long, 30–100 miles (48–160 km) wide; 50,000 sq. mi. (129,500 sq. km).
- nearer tibet — the eastern part of Tibet.
- neotribalism — Ideology that humans have evolved to live in a tribal, as opposed to a modern society.
- nimbostratus — a cloud of a class characterized by a formless layer that is almost uniformly dark gray; a rain cloud of the layer type, of low altitude, usually below 8000 feet (2440 meters).
- nonarbitrary — decided by a judge or arbiter rather than by a law or statute.
- nonbacterial — Not bacterial.
- nonbreathing — not breathing
- nonheritable — Not heritable.
- northumbrian — of or relating to Northumbria, Northumberland, or the inhabitants or dialect of either.
- notice board — bulletin board for displaying public messages
- noticeboards — Plural form of noticeboard.
- numerability — the fact of having the ability to be counted
- obedientiary — The holder of a monastic rank or office below that of superior.
- obligatorily — required as a matter of obligation; mandatory: A reply is desirable but not obligatory.
- obliterating — Present participle of obliterate.
- obliteration — the act of obliterating or the state of being obliterated.
- obliterative — Tending or serving to obliterate.
- obscurantism — opposition to the increase and spread of knowledge.
- obscurantist — opposition to the increase and spread of knowledge.
- obscurations — Plural form of obscuration.
- observations — Plural form of observation.
- obstetrician — a physician who specializes in obstetrics. Abbreviation: OB, ob.
- on probation — under the supervision of a probation officer
- on the brain — constantly in mind
- orbicularity — The quality of being orbicular.
- orbital road — a highway that circles a metropolitan area; ring road
- overtime ban — a refusal by employees to work overtime
- paint bridge — a structure spanning and providing passage over a river, chasm, road, or the like.
- participable — capable of being shared.
- pathbreaking — pertaining to blazing a trail or path.
- permeability — the property or state of being permeable.
- perturbation — the act of perturbing.
- perturbative — having a tendency to perturb; disturbing.
- petrobrusian — a member of a 12th-century sect in S France that rejected the Mass, infant baptism, prayers for the dead, sacerdotalism, the veneration of the cross, and the building of churches.
- port alberni — a port in SW British Columbia, in SW Canada, on the E central part of Vancouver Island, on an inlet of the Pacific Ocean.
- postabortion — Also called voluntary abortion. the removal of an embryo or fetus from the uterus in order to end a pregnancy.
- postbrachial — belonging to the arm, foreleg, wing, pectoral fin, or other forelimb of a vertebrate.
- powerboating — a boat propelled by mechanical power.
- precipitable — capable of being precipitated.
- preestablish — to establish beforehand.
- prefabricate — to fabricate or construct beforehand.
- presbyterial — of or relating to a presbytery.
- presbyterian — pertaining to or based on the principle of ecclesiastical government by presbyters or presbyteries.
- private bill — a congressional or parliamentary bill involving the private interests of a particular individual, corporation, or local unit.
- probationary — the act of testing.