15-letter words containing l, h, e, r
- off the trolley — Describes the behaviour of a program that malfunctions and goes catatonic, but doesn't actually crash or abort. See glitch, bug, deep space.
- old father time — time personified
- old high german — High German before 1100. Abbreviation: OHG.
- oligosaccharide — any carbohydrate yielding few monosaccharides on hydrolysis, as two, three, or four.
- on the trail of — If you are on the trail of a person or thing, you are trying hard to find them or find out about them.
- one's last hour — the time of one's death
- orchestrational — Of or pertaining to orchestration.
- organochlorines — Plural form of organochlorine.
- ornithodelphian — of or relating to mammals of the class Ornithodelphia
- ortho-toluidine — Chemistry. a light-yellow, very slightly water-soluble liquid, C 7 H 9 N, the ortho isomer of toluidine: used in the manufacture of dyes, saccharin, and other organic compounds, and in textile printing processes.
- orthokeratology — a technique for correcting refractive errors in vision by changing the shape of the cornea with the temporary use of progressively flatter hard contact lenses.
- orthopaedically — in an orthopaedic manner
- overhead locker — a locker situated above someone's seat for storing luggage, etc
- overthrust belt — an elongate area in which thick rock layers have been pushed over one another by compressional forces within the earth's crust.
- paedophile ring — a group of people who take part in illegal sexual activity involving children
- palaeoanthropic — relating to palaeoanthropology
- palaeogeography — the study of geographical features of the geological past
- palaeontography — the branch of palaeontology concerned with the description of fossils
- paracetaldehyde — paraldehyde.
- paraheliotropic — (of leaves) turning away from light; sun-avoiding
- parenthetically — of, pertaining to, noting, or of the nature of a parenthesis: several unnecessary parenthetic remarks.
- parhelic circle — a white, horizontal band passing through the sun, either incomplete or extending around the horizon, produced by the reflection of the sun's rays from the vertical faces of ice prisms in the atmosphere.
- pass-the-parcel — a children's game in which a parcel with lots of wrappings is passed round while music plays; each time the music stops the person holding the parcel takes a layer of wrapping off
- passport holder — a person who has a passport
- pavel petrovich — Paul I (def 2).
- penshurst place — a 14th-century mansion near Tunbridge Wells in Kent: birthplace of Sir Philip Sidney; gardens laid out from 1560
- pentaerythritol — a white, crystalline, water-soluble powder, C 5 H 1 2 O 4 , used chiefly in the manufacture of alkyd resins, varnishes, plasticizers, and explosives.
- perchloric acid — a colorless, syrupy hygroscopic liquid, HClO 4 , an acid of chlorine containing one more oxygen atom than chloric acid: used chiefly as a reagent in analytical chemistry.
- perchloroethane — hexachloroethane.
- peroxysulphuric — as in peroxysulphuric acid
- perpetual check — a continuing series of checks resulting in a drawn game because they cannot be halted or evaded without resulting in checkmate or a serious disadvantage.
- personal growth — development as an individual
- petroleum ether — a volatile mixture of the higher alkane hydrocarbons, obtained as a fraction of petroleum and used as a solvent
- phenyl valerate — a colorless, slightly water-soluble liquid, C 1 1 H 1 4 O 2 , used chiefly in flavoring and perfumery.
- phenylene group — any of three bivalent, isomeric groups having the formula –C 6 H 4 –, derived from benzene by the removal of two hydrogen atoms.
- phenylhydrazine — a yellow, poisonous liquid or low-melting solid, C 6 H 8 N 2 , used in chemical analysis and organic synthesis.
- phenylketonuria — an inherited disease due to faulty metabolism of phenylalanine, characterized by phenylketones in the urine and usually first noted by signs of mental retardation in infancy.
- phenylketonuric — an inherited disease due to faulty metabolism of phenylalanine, characterized by phenylketones in the urine and usually first noted by signs of mental retardation in infancy.
- phlebosclerosis — sclerosis, or hardening, of the walls of veins.
- phloem necrosis — a disease of the American elm caused by a mycoplasmalike organism, characterized by yellowing and necrosis of the foliage and yellowish-brown discoloration of the phloem.
- phosphorylative — of or relating to phosphorylation
- photodegradable — (of a substance) capable of being broken down by light.
- photoelectronic — relating to electronic effects or devices affected by light
- photoheliograph — an instrument for photographing the sun, consisting of a camera and a specially adapted telescope.
- photomultiplier — an extremely sensitive detector of light and of other radiation, consisting of a tube in which the electrons released by radiation striking a photocathode are accelerated, greatly amplifying the signal obtainable from small quantities of radiation.
- phototelegraphy — facsimile (def 2a).
- phrenologically — in a manner relating to phrenology
- physical memory — (memory management) The memory hardware (normally RAM) installed in a computer. The term is only used in contrast to virtual memory.
- pied flycatcher — a small black and white migratory bird of Europe and western Asia, Ficedula hypoleuca
- pilgrim fathers — the Pilgrims (of Plymouth Colony)