13-letter words containing l, o, n, r
- nutritionally — Concerning nutrition.
- 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 bulgarian — the Bulgarian language of the Middle Ages.
- old ironsides — the U.S. frigate Constitution (used as a nickname).
- old man river — a name for the Mississippi River
- old northwest — a territory of Canada lying N of 60 degrees N and extending E from the Yukon Territory to Nunavut. 519,732 sq. mi. (1,346,106 sq. km) Capital: Yellowknife.
- old norwegian — the language of Norway as spoken and written from the middle of the 12th to the end of the 14th centuries.
- old pretender — a member of the royal family that ruled in Scotland from 1371 to 1714 and in England from 1603 to 1714.
- old provencal — the Provençal language as found in documents from the 11th to the 16th centuries. Abbreviation: OPr.
- olefin series — alkene series.
- oleomargarine — margarine.
- oligofluorene — (organic chemistry) Any of a class of aromatic polycyclic hydrocarbons consisting of several fluorene units attached end-to-end.
- omnicorporeal — Comprehending or including all bodies; embracing all substance.
- omnipresently — In an omnipresent manner.
- on reflection — second thoughts
- 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?
- optical crown — an optical glass of low dispersion and relatively low refractive index. It is used in the construction of lenses
- oraculousness — the state of being oraculous
- oral examiner — someone who administers oral exams
- oral solution — An oral solution is a medicine in liquid form for drinking.
- 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.
- 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.
- oregon myrtle — California laurel
- 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
- organolithium — (organic chemistry) Describing any organic compound containing a carbon to lithium bond.
- organosilicon — pertaining to or noting an organic compound containing silicon, especially where attached directly to a carbon atom.
- orientalizing — Present participle of orientalize.
- orientational — Of or pertaining to orientation.
- originalities — Plural form of originality.
- originatively — in an originative manner
- 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.
- ornamentality — used or grown for ornament: ornamental plants.
- ornithologist — the branch of zoology that deals with birds.
- oropharyngeal — the part of the pharynx between the soft palate and the upper edge of the epiglottis.
- orthodiagonal — the axis in a crystal
- orthogonalise — to make (vectors, functions, etc.) orthogonal.
- orthogonality — (mathematics, statistics) the property of being orthogonal.
- orthogonalize — to make (vectors, functions, etc.) orthogonal.
- outgeneraling — Present participle of outgeneral.