13-letter words containing o, r, a, l, s
- nonabsorbable — That is not able to be absorbed; not absorbable.
- noncolourfast — (of a fabric) having a colour that tends to fade when washed or worn
- nonhistorical — Not based on or drawn from history.
- nonhysterical — not hysterical or funny
- nonindustrial — of, pertaining to, of the nature of, or resulting from industry: industrial production; industrial waste.
- nonmeasurable — capable of being measured.
- nonobservable — capable of being or liable to be observed; noticeable; visible; discernible: an observable change in attitude.
- nonperishable — not subject to rapid deterioration or decay: A supply of nonperishable food was kept for emergencies.
- nonshrinkable — incapable of being shrunk
- nonstructural — Not structural; not related to a structure.
- normal school — (formerly) a school offering a two-year course and certification to high-school graduates preparing to be teachers, especially elementary-school teachers.
- normal series — a collection of subgroups of a given group so arranged that the first subgroup is the identity, the last subgroup is the group itself, and each subgroup is a normal subgroup of the succeeding subgroup.
- normalisation — Alternative form of normalization.
- north sea oil — oil extracted from deposits beneath the North Sea
- northeasterly — of or located in the northeast.
- 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.
- obstacle race — a foot race in which the contestants are prevented in a specific way from covering the full course at top speed, as by having hurdles to jump, sacks enclosing the legs, or potatoes to pick up.
- obstetrically — (medicine) In terms of obstetrics.
- of all others — above all others
- off the rails — into or in a state of dysfunction or disorder
- old ritualist — Raskolnik.
- olfactometers — Plural form of olfactometer.
- opera glasses — small binoculars
- oraculousness — the state of being oraculous
- 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
- orlando lasso — Orlando di [dee] /di/ (Show IPA), (Orlandus Lassus) 1532–94, Flemish composer.
- 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.
- osmoregulator — Any organism that practices osmoregulation.
- outlaw strike — wildcat strike.
- overappraisal — An appraisal that overvalues something.
- overlay glass — case glass.
- oversocialize — to make social; make fit for life in companionship with others.
- overspeculate — to engage in thought or reflection; meditate (often followed by on, upon, or a clause).
- overstability — the state of being excessively stable