13-letter words containing r, a, b, i, n, o
- old bulgarian — the Bulgarian language of the Middle Ages.
- onus probandi — the burden of proof.
- opisthobranch — any gastropod mollusk of the order Opisthobranchia, as the sea slugs, sea butterflies, and sea hares, characterized by a vestigial or absent mantle and shell and two pairs of tentacles.
- ora pro nobis — a Latin invocation meaning pray for us
- orbital index — the ratio of the maximum breadth to the maximum height of the orbital cavity multiplied by 100.
- orbitofrontal — Located in the frontal lobes above the orbits of the eyes.
- organ-builder — a maker of organs
- ornithophobia — Fear of birds.
- overbalancing — Present participle of overbalance.
- overbearingly — domineering; dictatorial; haughtily or rudely arrogant.
- overbreathing — hyperventilation
- overnight bag — a travel bag large enough to hold personal articles and clothing for an overnight trip.
- paleosiberian — a group of languages comprising those languages of Siberia that are not affiliated with Indo-European, Altaic, Uralic, or Eskimo-Aleut and including the Chukotian family and the unrelated language isolates Ket, Nivkh, and Yukaghir; Paleo-Asiatic.
- parietal bone — either of a pair of membrane bones forming, by their union at the sagittal suture, part of the sides and top of the skull.
- parking orbit — a temporary orbit in which a spacecraft awaits the next phase of its mission.
- partitionable — a division into or distribution in portions or shares.
- pentobarbital — a barbiturate, C 1 1 H 1 7 N 2 O 3 , used as a hypnotic and as a sedative.
- perambulation — to walk through, about, or over; travel through; traverse.
- perditionable — deserving perdition or damnation
- phenobarbital — a white, crystalline powder, C 1 2 H 1 2 N 2 O 3 , used as a sedative, a hypnotic, and as an antispasmodic in epilepsy.
- pigeon breast — chicken breast.
- pine grosbeak — a large grosbeak, Pinicola enucleator, of coniferous forests of northern North America and Eurasia, the male of which has rose and gray plumage.
- post-cambrian — Geology. noting or pertaining to a period of the Paleozoic Era, occurring from 570 million to 500 million years ago, when algae and marine invertebrates were the predominant form of life.
- 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.
- principal boy — the leading male role in a pantomime, played by a woman
- pro-abolition — the act of abolishing: the abolition of war.
- rabblerousing — Of or pertaining to a rabble-rouser.
- rainbow snake — a burrowing snake, Farancia erytrogramma, of the southeastern U.S., having red and black stripes along the body, a red and yellow underside, and a sharp-tipped tail used in maneuvering prey.
- 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.
- rambling rose — any of various cultivated hybrid roses that straggle over other vegetation
- re-absorption — resorption (def 2).
- reasonability — agreeable to reason or sound judgment; logical: a reasonable choice for chairman.
- reattribution — the act of attributing; ascription.
- recalibration — the act or process of recalibrating something
- recombination — any of several processes by which genetic material of different origins becomes combined. It most commonly occurs between two sets of parental chromosomes during production of germ cells
- redial button — a button on a telephone, allowing the user to dial a number again
- reinforceable — capable of being reinforced
- relubrication — to apply some oily or greasy substance to (a machine, parts of a mechanism, etc.) in order to diminish friction; oil or grease (something).
- republication — publication anew.
- resublimation — Psychology. the diversion of the energy of a sexual or other biological impulse from its immediate goal to one of a more acceptable social, moral, or aesthetic nature or use.
- reverberation — a reechoed sound.
- ribosomal rna — a type of RNA, distinguished by its length and abundance, functioning in protein synthesis as a component of ribosomes. Abbreviation: rRNA.
- road-blocking — an obstruction placed across a road, especially of barricades or police cars, for halting or hindering traffic, as to facilitate the capture of a pursued car or inspection for safety violations.
- robben island — a small island in South Africa, 11 km (7 miles) off the Cape Peninsula: formerly used by the South African government to house political prisoners
- robot dancing — a dance of the 1980s characterized by jerky mechanical movements
- rollerblading — skating on rollerblades
- running board — a small ledge, step, or footboard, formerly beneath the doors of an automobile, to assist passengers entering or leaving the car.
- san cristobal — a city in SW Venezuela.
- semicarbazone — a product that occurs as a result of aldehyde or ketone reacting with semicarbazide