12-letter words containing o, r, b, a, n

nonheritable — Not heritable.
nonlibrarian — one who is not a librarian
nonmicrobial — not microbial, not caused by or related to microbes
nonobservant — Not observant; not religious; not participating in the observance of religion.
nonpermeable — capable of being permeated.
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.
noordbrabant — North Brabant
normalizable — That can be normalized.
northumbrian — of or relating to Northumbria, Northumberland, or the inhabitants or dialect of either.
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.
obdurateness — The characteristic of being obdurate; stubbornness.
obedientiary — The holder of a monastic rank or office below that of superior.
obliterating — Present participle of obliterate.
obliteration — the act of obliterating or the state of being obliterated.
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.
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 probation — under the supervision of a probation officer
on sb's part — If you talk about a feeling or action on someone's part, you are referring to something that they feel or do.
on shipboard — on board a ship
on the brain — constantly in mind
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.
osco-umbrian — a group of languages, usually classified as Italic, that contains Oscan and Umbrian.
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
pattern book — collection of textile motifs or designs
paul-boncour — Joseph [zhaw-zef] /ʒɔˈzɛf/ (Show IPA), 1873–1972, French lawyer and statesman: premier 1932–33.
pearl button — a button (as for fastening a shirt, blouse, etc) made of pearl or mother-of-pearl
perturbation — the act of perturbing.
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.
petrobutanol — butyl alcohol.
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.

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