12-letter words containing t, e, r, h
- paraesthesia — an abnormal sensation, as prickling, itching, etc.
- paraesthetic — paresthesia.
- paranthelion — a bright spot in the sky caused by refraction and occurring at an angular distance from the sun of between 90° and 140°
- parathormone — a hormone secreted by the parathyroids, important in the control of the calcium-phosphorus balance of the body
- parchmentize — to treat (paper or the like) so that it resembles parchment.
- parenthesize — to insert (a word, phrase, etc.) as a parenthesis.
- parity check — a method for detecting errors in data communications or within a computer system by counting the number of ones or zeros per byte or per word, including a special check bit (parity bit) to see if the value is even or odd.
- patent right — the exclusive right granted by a patent, as on an invention.
- pathbreaking — pertaining to blazing a trail or path.
- patriarchate — the office, dignity, jurisdiction, province, or residence of an ecclesiastical patriarch.
- pearly white — white and lustrous as a pearl.
- peltier heat — the heat gained or lost at a junction of a thermocouple due to the Peltier effect.
- pentahydrate — a hydrate that contains five molecules of water, as potassium molybdate, KMoO 4 ⋅5H 2 O.
- pentahydroxy — (of a molecule) containing five hydroxyl groups.
- perichaetial — denoting the leaves in mosses that surround the archegonia and, later, the base of the sporophyte
- perichaetium — a leafy cluster (bracts) around the base of the reproductive organs of some plants, predominantly mosses
- pericynthion — the point at which a spacecraft launched from earth into a lunar orbit is nearest the moon
- periphrastic — circumlocutory; roundabout.
- peristrephic — that turns around or revolves
- peritrichate — (of bacteria) having flagella on the entire surface.
- peritrichous — (of bacteria) having a uniform distribution of flagella over the body surface.
- peterborough — a city in Cambridgeshire, in central England.
- petite sirah — a dry red wine produced mainly in California
- petrochemist — someone who studies petrochemistry or works in the petrochemical industry
- petroglyphic — relating to or having the characteristics of a petroglyph or carving made in rock
- petrophysics — the analysis of the constitution and characteristics of rocks
- phanerophyte — a tree or shrub that bears its perennating buds more than 25 cm above the level of the soil
- pharmaceutic — pertaining to pharmacy or pharmacists.
- pharmacolite — hydrous calcium arsenate, 2CaO⋅As 2 O 5 ⋅5H 2 O, formed by natural alteration of mineral deposits containing arsenopyrite and arsenical ores of cobalt and silver.
- phenanthrene — a colorless, shiny, crystalline, water-insoluble isomer of anthracene, C 1 4 H 1 0 , derived from coal tar: used chiefly in dyestuffs and in the synthesis of drugs.
- phenocrystic — relating to a phenocryst
- phosphoreted — phosphureted.
- phosphureted — combined with phosphorus, especially in its lowest valence state.
- photo relief — a method of showing the configuration of the relief of an area by photographing a model of it that is illuminated by a lamp in the northwest corner
- photo spread — a picture spread. See under spread (def 33).
- photocurrent — an electric current produced by a photoelectric effect.
- photoengrave — to make a photoengraving of.
- photographer — a person who takes photographs, especially one who practices photography professionally.
- photogravure — any of various processes, based on photography, by which an intaglio engraving is formed on a metal plate, from which ink reproductions are made.
- photoneutron — a neutron emitted from a nucleus during photodisintegration.
- photonuclear — of, relating to, or caused by the collision of high-energy photons with the nucleus of an atom.
- photopolymer — a polymer or plastic that undergoes a change in physical or chemical properties when exposed to light.
- photorealism — a style of painting flourishing in the 1970s, especially in the U.S., England, and France, and depicting commonplace scenes or ordinary people, with a meticulously detailed realism, flat images, and barely discernible brushwork that suggests and often is based on or incorporates an actual photograph.
- phototherapy — treatment of disease, especially of the skin, by means of light rays.
- photothermic — pertaining to the thermal effects of light.
- phreatophyte — a long-rooted plant that absorbs its water from the water table or the soil above it.
- phrenologist — a psychological theory or analytical method based on the belief that certain mental faculties and character traits are indicated by the configurations of the skull.
- phrontistery — a place or establishment for thinking, studying, or learning
- phylacteries — Judaism. either of two small, black, leather cubes containing a piece of parchment inscribed with verses 4–9 of Deut. 6, 13–21 of Deut. 11, and 1–16 of Ex. 13: one is attached with straps to the left arm and the other to the forehead during weekday morning prayers by Orthodox and Conservative Jewish men.
- phytographer — a botanist involved with plant description