13-letter words containing o, r, g, e, l
- old norwegian — the language of Norway as spoken and written from the middle of the 12th to the end of the 14th centuries.
- olduvai gorge — a gorge in Tanzania in which is located a site containing Australopithecine and human skeletal and cultural remains.
- oleomargarine — margarine.
- oligofluorene — (organic chemistry) Any of a class of aromatic polycyclic hydrocarbons consisting of several fluorene units attached end-to-end.
- open learning — a system of further education on a flexible part-time basis
- opera glasses — small binoculars
- 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
- orientalizing — Present participle of orientalize.
- originalities — Plural form of originality.
- originatively — in an originative manner
- 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.
- osmoregulator — Any organism that practices osmoregulation.
- outgeneraling — Present participle of outgeneral.
- outgeneralled — Simple past tense and past participle of outgeneral.
- outlaw regime — a dangerously unpredictable political regime, as of a country, state, etc, which disregards international law or diplomacy
- over-planning — a scheme or method of acting, doing, proceeding, making, etc., developed in advance: battle plans.
- overanalyzing — Present participle of overanalyze.
- overbalancing — Present participle of overbalance.
- overbearingly — domineering; dictatorial; haughtily or rudely arrogant.
- overflow flag — overflow bit
- overflowingly — to an excessive degree
- overglamorize — to glamorize excessively
- overlay glass — case glass.
- overleveraged — (of a business organization) having an excessively high ratio of debt capital to equity capital
- overpedalling — the overuse of the piano's pedals
- parallelogram — a quadrilateral having both pairs of opposite sides parallel to each other.
- pastel orange — suntan (def 3).
- pearl molding — a molding having the form of a row of pearls.
- petrol engine — an internal-combustion engine that uses petrol as fuel
- phlebographic — relating to phlebography or the X-ray imaging of a vein that has been injected with a dye that is visible on the image taken
- photo gallery — display of collected photographs
- photoallergic — photosensitive.
- phototelegram — a telegram that is sent by means of phototelegraphy
- phraseologist — a person who treats of or is concerned with phraseology.
- pickerel frog — a meadow frog, Rana palustris, common in eastern North America, similar to the leopard frog but with squarish dark spots on the back.
- platform game — a type of computer game that is played by moving a figure on the screen through a series of obstacles and problems
- plethysmogram — the recording of a plethysmograph.
- port language — ["Communicating Parallel Processes", J. Kerridge et al, Soft Prac & Exp 16(1):63-86 (Jan 1986)].
- power loading — the act of a person or thing that loads.
- power walking — a form of exercise that involves rapid walking with arms bent and swinging naturally.
- prague school — a school of linguistics emphasizing structure, active in the 1920s and 1930s.
- praxeological — of or pertaining to praxeology
- prebiological — of or relating to chemicals or environmental conditions existing before the development of the first living things.
- preganglionic — of, relating to, or consisting of ganglia.
- prelitigation — the act or process of litigating: a matter that is still in litigation.
- prerogatively — by way of privilege or prerogative