12-letter words containing a, b, e, r
- nonremovable — that may be removed.
- nonrenewable — able to be renewed: a library book that is not renewable.
- nonrepayable — that does not need to be or cannot be repaid
- nonrevocable — Not revocable.
- normalizable — That can be normalized.
- not-a-number — (mathematics) (NaN) An IEEE floating point representation for the result of a numerical operation which cannot return a valid number value. A NaN can result from multiplying an infinity by a zero, or from subtracting one infinity from another [what else?]. NaN is encoded as a special bit pattern [what pattern?] which would otherwise represent a floating-point number. It is used to signal error returns where other mechanisms are not convenient, e.g. a hardware floating-point unit and to allow errors to propagate through a calculation. Similar bit patterns represent positive and negative overflow and underflow and the positive and negative infinities resulting from division by zero.
- note verbale — a diplomatic communication prepared in the third person and unsigned: less formal than a note but more formal than an aide-mémoire.
- notice board — bulletin board for displaying public messages
- noticeboards — Plural form of noticeboard.
- nuclear bomb — atomic explosive
- number opera — an opera in which the arias, ensembles, recitatives, and other sections are clearly separated from one another.
- number plate — vehicle's registration panel
- numbers game — Also called numbers, numbers game, numbers racket. an illegal daily lottery in which money is wagered on the appearance of certain numbers in some statistical listing or tabulation published in a daily newspaper, racing form, etc.
- numerability — the fact of having the ability to be counted
- obdurateness — The characteristic of being obdurate; stubbornness.
- obedientiary — The holder of a monastic rank or office below that of superior.
- oberammergau — a village in S Germany, SW of Munich: famous for the passion play performed there every ten years.
- obliterating — Present participle of obliterate.
- obliteration — the act of obliterating or the state of being obliterated.
- obliterative — Tending or serving to obliterate.
- oboe d'amore — a type of oboe pitched a minor third lower than the oboe itself. It is used chiefly in the performance of baroque music
- oboe d'amour — an oboe with a bulb-shaped bell that is pitched a minor third below the range of the conventional oboe and was much used in music of the Baroque period.
- observations — Plural form of observation.
- obstetrician — a physician who specializes in obstetrics. Abbreviation: OB, ob.
- obstreperate — to be extremely noisy or to create a resounding din
- olallieberry — a blackberry that is a cross between the loganberry and the youngberry, cultivated in California and Oregon.
- olive branch — a branch of the olive tree as an emblem of peace.
- omega baryon — a negative baryon having a mass 3272 times that of the electron and a mean lifetime of 8 X 10 -11 seconds.
- on the brain — constantly in mind
- opera bouffe — a comic opera, especially of farcical character.
- oracle bones — animal bones used for divination
- orion nebula — a luminous nebula in the constellation Orion, in the center of Orion's sword.
- ormond beach — a town in NE Florida.
- overabstract — thought of apart from concrete realities, specific objects, or actual instances: an abstract idea.
- overabundant — an excessive amount or abundance; surfeit: an overabundance of sugar in the diet.
- overbalanced — Simple past tense and past participle of overbalance.
- overbalances — Third-person singular simple present indicative form of overbalance.
- overbearance — (rare, or, obsolete) Overbearing behaviour; arrogance; imperiousness.
- overtime ban — a refusal by employees to work overtime
- pain barrier — If you say that a sports player has gone through the pain barrier, you mean that he or she is continuing to make a great effort in spite of being injured or exhausted.
- paint bridge — a structure spanning and providing passage over a river, chasm, road, or the like.
- paleoliberal — a person advocating a more extreme form of liberalism, especially in politics.
- palm warbler — a North American wood warbler, Dendroica palmarum, brown above and whitish or yellowish below.
- pan scrubber — a rough sponge, often made of steel wool, used for scrubbing saucepans, frying pans, etc
- panel beater — a person who beats out the bodywork of motor vehicles
- parole board — panel who evaluate prisoners for release
- participable — capable of being shared.
- pathbreaking — pertaining to blazing a trail or path.
- pattern book — collection of textile motifs or designs
- peabody bird — the white-throated sparrow.