13-letter words containing a, b, n, o
- pilot balloon — a balloon for the visual observation of upper-atmosphere wind currents.
- 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.
- plebification — the act of making popular or vulgar
- pollen basket — (of bees) a smooth area on the hind tibia of each leg fringed with long hairs and serving to transport pollen.
- polybutadiene — a rubberlike polymer of butadiene blended with other synthetics to replace natural rubber in tires.
- polycarbonate — a synthetic thermoplastic resin, a linear polymer of carbonic acid, used for molded products, films, and nonbreakable windows.
- polythene bag — a bag made of polythene, esp one used to store or protect food or household articles
- pomme blanche — breadroot.
- pompano beach — a city in SE Florida.
- 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.
- 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.
- principal boy — the leading male role in a pantomime, played by a woman
- pro-abolition — the act of abolishing: the abolition of war.
- 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.
- rabbath ammon — Amman.
- 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
- random number — pseudorandom number
- random rubble — masonry in which untooled stones are set without coursing
- 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
- recommendable — to present as worthy of confidence, acceptance, use, etc.; commend; mention favorably: to recommend an applicant for a job; to recommend a book.
- recommendably — in a way that is recommendable
- redial button — a button on a telephone, allowing the user to dial a number again
- redondo beach — a city in SW California.
- 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.
- roanoke bells — a wild plant, Mertensia virginica, of the borage family, native to the eastern U.S., grown as a garden plant for its handsome, nodding clusters of blue flowers.
- 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
- robber barons — History/Historical. a noble who robbed travelers passing through his lands.
- robot dancing — a dance of the 1980s characterized by jerky mechanical movements
- rock barnacle — any marine crustacean of the subclass Cirripedia, usually having a calcareous shell, being either stalked (goose barnacle) and attaching itself to ship bottoms and floating timber, or stalkless (rock barnacle or acorn barnacle) and attaching itself to rocks, especially in the intertidal zone.
- rollerblading — skating on rollerblades
- rond de jambe — a circular movement of the leg.
- run on a bank — A run on a bank is a situation in which borrowers are worried that the bank will fail and they all try to withdraw money at the same time.
- running board — a small ledge, step, or footboard, formerly beneath the doors of an automobile, to assist passengers entering or leaving the car.