13-letter words containing h, i, g, r, a
- oil hardening — to quench (steel) in a bath of oil.
- opisthography — the practice of writing on the front and back of a parchment or papyrus
- orchestrating — Present participle of orchestrate.
- 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.
- organolithium — (organic chemistry) Describing any organic compound containing a carbon to lithium bond.
- 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.
- orthographies — Plural form of orthography.
- orthographize — to spell correctly or according to the rules of orthography.
- 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.
- overachieving — Present participle of overachieve.
- overbreathing — hyperventilation
- overnight bag — a travel bag large enough to hold personal articles and clothing for an overnight trip.
- paper-pushing — a person who has a routine desk job.
- paring chisel — a woodworking chisel moved by steady hand pressure to make long, light cuts.
- parking light — The parking lights on a vehicle are the small lights at the front that help other drivers to notice the vehicle and to judge its width.
- parma heights — a city in NE Ohio, near Cleveland.
- path-breaking — very original; ground-breaking
- pennyfarthing — a high bicycle of an early type, with one large wheel in front and one small wheel behind.
- periwig chair — a chair of c1700 having a high, caned back with an elaborately carved cresting.
- pharmacologic — the science dealing with the preparation, uses, and especially the effects of drugs.
- pharyngealize — to pronounce with pharyngeal coarticulation.
- phase diagram — a graph, usually using temperature, pressure, and composition as coordinates, indicating the regions of stability of the various phases of a system.
- 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-sharing — the publishing of digital photographs on the internet
- photoallergic — photosensitive.
- photographing — a picture produced by photography.
- phraseologist — a person who treats of or is concerned with phraseology.
- phrygian mode — an authentic church mode represented on the white keys of a keyboard instrument by an ascending scale from E to E.
- physiographic — the science of physical geography.
- plain yoghurt — natural yoghurt, without added flavouring
- playwrighting — the writing of plays
- power-sharing — Power-sharing is a political arrangement in which different or opposing groups all take part in government together.
- pseudepigraph — a book or piece of writing that is falsely titled or credited
- psychographic — Psychology. a graph indicating the relative strength of the personality traits of an individual.
- public charge — a person who is in economic distress and is supported at government expense: He assured the American consul that the prospective immigrant would not become a public charge.
- queer-bashing — the activity of making vicious and unprovoked verbal or physical assaults upon homosexuals or supposed homosexuals
- radical right — the faction representing extreme right-wing political views; ultraconservatives; reactionaries.
- rayleigh disc — a small light disc suspended in the path of a sound wave, used to measure the intensity of the sound by analysing the resulting deflection of the disc
- rayleigh disk — a small circular disk, usually of mica, that is suspended from a fiber and tends to be deflected at right angles to a stream of air, indicating by its deflection the intensity of a sound wave.
- rayleigh wave — a wave along the surface of a solid, elastic body, especially along the surface of the earth.
- reading chair — a chair of the 18th century having an adjustable reading stand attached to the back and a crest rail extending forward on both sides to form armrests, designed to be sat on facing the back.
- reading light — any small electric light that you use for reading. You can usually move it in order to direct the light to where you need it for reading. It can be attached to a wall or shelf in the home, or be above your head inside an aircraft or other vehicle.
- regime change — the transition from one political regime to another, esp through concerted political or military action
- reprographics — reprography.
- rheologically — in a rheological manner
- rhumb sailing — sea navigation along rhumb lines.