13-letter words containing o, r, a, l, i, s
- north sea oil — oil extracted from deposits beneath the North Sea
- norwalk virus — a norovirus.
- observability — capable of being or liable to be observed; noticeable; visible; discernible: an observable change in attitude.
- observational — of, relating to, or founded on observation, especially founded on observation rather than experiment.
- obstetrically — (medicine) In terms of obstetrics.
- off the rails — into or in a state of dysfunction or disorder
- old ritualist — Raskolnik.
- oral solution — An oral solution is a medicine in liquid form for drinking.
- orchestralist — a person who writes or arranges orchestral music
- ordinal scale — a scale on which data is shown simply in order of magnitude since there is no standard of measurement of differences: for instance, a squash ladder is an ordinal scale since one can say only that one person is better than another, but not by how much
- ordinary loss — An ordinary loss is a loss in the course of normal business.
- organ whistle — a steam or air whistle in which the jet is forced up against the thin edge of a pipe closed at the top.
- organosilicon — pertaining to or noting an organic compound containing silicon, especially where attached directly to a carbon atom.
- orgiastically — In an orgiastic fashion.
- originalities — Plural form of originality.
- orismological — relating to orismology
- ornamentalism — the desire or tendency to feature ornament in the design of buildings, interiors, furnishings, etc.
- ornamentalist — A person who ornaments.
- orsellic acid — an acid found in lichens
- orthogonalise — to make (vectors, functions, etc.) orthogonal.
- orthosilicate — a silicate mineral
- oscillographs — Plural form of oscillograph.
- oscillography — a device for recording the wave-forms of changing currents, voltages, or any other quantity that can be translated into electric energy, as sound waves.
- outlaw strike — wildcat strike.
- overappraisal — An appraisal that overvalues something.
- oversocialize — to make social; make fit for life in companionship with others.
- overstability — the state of being excessively stable
- overstimulate — to stimulate too much
- palaeocrystic — consisting of former glacial formation
- 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.
- paradise lost — an epic poem (1667) by John Milton.
- parapophysial — of or relating to a parapophysis
- parrot's-bill — a showy, vinelike plant, Clianthus puniceus, of New Zealand, having clusters of eight white-streaked, crimson flowers.
- passionflower — any chiefly American climbing vine or shrub of the genus Passiflora, having showy flowers and a pulpy berry or fruit that in some species is edible.
- patripotestal — Anthropology. of or relating to the authority exercised by a father or a father's blood relatives.
- periodicalist — a writer of articles for periodicals
- perissodactyl — having an uneven number of toes or digits on each foot.
- perlustration — the act of perlustrating; a thorough inspection or survey, esp of letters for purposes of surveillance
- persian melon — a round variety of muskmelon having a green, reticulate, unribbed rind and orange flesh.
- personalistic — Also called personal idealism. a modern philosophical movement locating ultimate value and reality in persons, human or divine.
- personalities — the visible aspect of one's character as it impresses others: He has a pleasing personality.
- petrophysical — relating to the analysis of the constitution and characteristics of rocks
- phraseologist — a person who treats of or is concerned with phraseology.
- pictorialness — the state of being pictorial
- piers plowman — (The Vision Concerning Piers Plowman) an alliterative poem written in three versions (1360–99), ascribed to William Langland.
- piroplasmosis — babesiosis.
- piss all over — to be far superior to
- plagiotropism — plagiotropic tendency or growth.
- plasmodiocarp — a fruiting body of certain myxomycetes.
- platiniferous — platinum-bearing