13-letter words containing o, u, b, a
- neurofibromas — Plural form of neurofibroma.
- news blackout — a situation in which a government or other authority imposes a ban on the publication of news on a particular subject
- non-ambiguity — doubtfulness or uncertainty of meaning or intention: to speak with ambiguity; an ambiguity of manner.
- non-budgetary — an estimate, often itemized, of expected income and expense for a given period in the future.
- non-imputable — to attribute or ascribe: The children imputed magical powers to the old woman.
- non-reputable — held in good repute; honorable; respectable; estimable: a reputable organization.
- nonambulatory — of, relating to, or capable of walking: an ambulatory exploration of the countryside.
- nonconsumable — able or meant to be consumed, as by eating, drinking, or using: consumable goods.
- nonmeasurable — capable of being measured.
- nonpunishable — Not punishable; of an act, for which no punishment has been authorized; of a person, beyond the reach of punishment.
- nonrefundable — an amount refunded.
- nonreturnable — not returnable.
- noogoora burr — a European cocklebur, Xanthium pungens, that is poisonous to stock
- notary public — a public officer or other person authorized to authenticate contracts, acknowledge deeds, take affidavits, protest bills of exchange, take depositions, etc.
- novo hamburgo — a city in Rio Grande do Sul state, S Brazil.
- object clause — the clause that acts as the object of a verb
- objurgatively — In an objurgative or reproving manner.
- oblique angle — an angle that is not a right angle; an acute or obtuse angle.
- oblique fault — a fault that runs obliquely to, rather than parallel to or perpendicular to, the strike of the affected rocks
- 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.
- oil-based mud — Oil-based mud is a drilling fluid that is an emulsion containing oil as the base fluid.
- old bulgarian — the Bulgarian language of the Middle Ages.
- ombudsmanship — The position or office of an ombudsman.
- onus probandi — the burden of proof.
- organ-builder — a maker of organs
- out and about — busy, active outside the home
- out of breath — the air inhaled and exhaled in respiration.
- out on a limb — a part or member of an animal body distinct from the head and trunk, as a leg, arm, or wing: the lower limbs; artificial limbs.
- outward bound — (in Britain) a scheme to provide adventure training for young people
- outward-bound — headed in an outward direction, as toward foreign ports: We passed an outward-bound ship as we came into the harbor.
- over-abundant — an excessive amount or abundance; surfeit: an overabundance of sugar in the diet.
- overabundance — an excessive amount or abundance; surfeit: an overabundance of sugar in the diet.
- overambitious — having ambition; eagerly desirous of achieving or obtaining success, power, wealth, a specific goal, etc.: ambitious students.
- overexuberant — effusively and almost uninhibitedly enthusiastic; lavishly abundant: an exuberant welcome for the hero.
- overrun brake — a brake fitted to a trailer or other towed vehicle that prevents the towed vehicle travelling faster than the towing vehicle when slowing down or descending an incline
- perambulation — to walk through, about, or over; travel through; traverse.
- pleasure boat — recreational vessel
- polybutadiene — a rubberlike polymer of butadiene blended with other synthetics to replace natural rubber in tires.
- postdebutante — following the stage of being a debutante
- pouring-basin — (in a vacuum induction furnace) a trough through which molten metal flows under vacuum to a mold chamber.
- pre-columbian — of or relating to the Americas before the arrival of Columbus: pre-Columbian art; pre-Columbian Indians.
- probate court — a special court with power over administration of estates of deceased persons, the probate of wills, etc.
- pronounceable — to enunciate or articulate (sounds, words, sentences, etc.).
- public domain — the status of a literary work or an invention whose copyright or patent has expired or that never had such protection.
- quarter-bound — a style of bookbinding in which the spine is leather and the sides are cloth or paper.
- quodlibetical — a subtle or elaborate argument or point of debate, usually on a theological or scholastic subject.
- rabble-rouser — a person who stirs up the passions or prejudices of the public, usually for his or her own interests; demagogue.
- rabblerousing — Of or pertaining to a rabble-rouser.
- rainbow trout — a trout, Salmo gairdnerii, native in the coastal waters and streams from Baja California to Alaska, used as a food and game fish.
- random number — pseudorandom number