13-letter words containing r, e, n, a, l
- nonretractile — capable of being drawn back or in, as the head of a tortoise; exhibiting the power of retraction.
- nonreturnable — not returnable.
- nonshrinkable — incapable of being shrunk
- nontheatrical — not relating to the theatre
- noradrenaline — norepinephrine.
- 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.
- normally-open — Normally-open switch contacts are in an open state at rest.
- normocephalic — Having a normal sized head; neither macrocephalic nor microcephalic; mesocephalic.
- north channel — a strait between SW Scotland and NE Ireland. 14 miles (23 km) wide at the narrowest point.
- north sea oil — oil extracted from deposits beneath the North Sea
- northallerton — a market town in N England, administrative centre of North Yorkshire. Pop: 15 517 (2001)
- northeasterly — of or located in the northeast.
- nuclear force — strong interaction
- nuclear power — power derived from nuclear energy.
- nuclear waste — the radioactive by-products from the operation of a nuclear reactor or from the reprocessing of depleted nuclear fuel.
- numerological — Of, pertaining to, or based on numerology.
- nutraceutical — A food containing health-giving additives and having medicinal benefit.
- observational — of, relating to, or founded on observation, especially founded on observation rather than experiment.
- oil hardening — to quench (steel) in a bath of oil.
- old man river — a name for the Mississippi River
- old norwegian — the language of Norway as spoken and written from the middle of the 12th to the end of the 14th centuries.
- old provencal — the Provençal language as found in documents from the 11th to the 16th centuries. Abbreviation: OPr.
- oleomargarine — margarine.
- omnicorporeal — Comprehending or including all bodies; embracing all substance.
- on the razzle — out enjoying oneself or celebrating, esp while drinking freely
- one-room flat — a studio flat in which the bedroom, sitting-room and kitchen are all one-room
- open interval — (mathematics) A type of interval (range of numbers) that does not include either of its endpoints. For example, when mixing red and blue paint, the proportion of red lies in the interval 0% to 100% but can't be exactly 0% or 100% or it wouldn't be a mixture.
- open learning — a system of further education on a flexible part-time basis
- openheartedly — Alt form open-heartedly.
- operationally — able to function or be used; functional: How soon will the new factory be operational?
- oraculousness — the state of being oraculous
- oral examiner — someone who administers oral exams
- orbital index — the ratio of the maximum breadth to the maximum height of the orbital cavity multiplied by 100.
- 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
- 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.
- organ-builder — a maker of organs
- orientalizing — Present participle of orientalize.
- orientational — Of or pertaining to orientation.
- originalities — Plural form of originality.
- originatively — in an originative manner
- ornamentalism — the desire or tendency to feature ornament in the design of buildings, interiors, furnishings, etc.
- ornamentalist — A person who ornaments.
- ornamentality — used or grown for ornament: ornamental plants.
- oropharyngeal — the part of the pharynx between the soft palate and the upper edge of the epiglottis.
- orthogonalise — to make (vectors, functions, etc.) orthogonal.
- orthogonalize — to make (vectors, functions, etc.) orthogonal.
- outgeneraling — Present participle of outgeneral.
- outgeneralled — Simple past tense and past participle of outgeneral.
- over-analytic — pertaining to or proceeding by analysis (opposed to synthetic).
- over-planning — a scheme or method of acting, doing, proceeding, making, etc., developed in advance: battle plans.