13-letter words containing o, p, r, y
- phantasmagory — phantasmagoria.
- pharmacognosy — materia medica (def 2).
- pharyngectomy — excision of part or all of the pharynx.
- pharyngoscope — an instrument for inspecting the pharynx.
- pharyngoscopy — an examination by means of a pharyngoscope.
- phenoxy resin — any of a class of resins derived from polyhydroxy ethers
- phosphorylase — any enzyme, occurring widely in animal and plant tissue, that in the presence of an inorganic phosphate catalyzes the conversion of glycogen into sugar phosphate.
- phosphorylate — to introduce the phosphoryl group into (an organic compound).
- photo gallery — display of collected photographs
- phreatophytic — of, possessing the properties of, or relating to a phreatophyte
- phrygian mode — an authentic church mode represented on the white keys of a keyboard instrument by an ascending scale from E to E.
- phycoerythrin — a red protein pigment occurring in red algae.
- physharmonica — a keyboard musical instrument fitted with free reeds, and which is an early form of harmonium
- physiographic — the science of physical geography.
- physiotherapy — physical therapy.
- phytoestrogen — an estrogen-like compound occurring naturally in plants of the legume family and in grains, vegetables, and fruits.
- phytonutrient — phytochemical.
- phytoplankter — a minute organism which constitutes part of phytoplankton
- phytosanitary — of or relating to the health of plants
- plain yoghurt — natural yoghurt, without added flavouring
- plane journey — a journey made by flying in an aeroplane
- platonic year — a period of about 26,000 years, equal to the time required for a complete revolution of the equinoxes.
- platykurtosis — the state of being platykurtic.
- play for time — a dramatic composition or piece; drama.
- play on words — a pun or the act of punning.
- plethysmogram — the recording of a plethysmograph.
- pleurisy root — a North American milkweed, Asclepias tuberosa, whose root was used as a remedy for pleurisy.
- plymouth rock — a rock at Plymouth, Massachusetts, on which the Pilgrims who sailed on the Mayflower are said to have stepped ashore when they landed in America in 1620.
- polyarteritis — inflammation of the layers of an artery or of many arteries, usually caused by a severe hypersensitivity reaction, and characterized by nodules and hemorrhage along the involved vessels.
- polyarthritis — arthritis occurring in more than one joint.
- polyarticular — pertaining to or affecting many joints.
- polycarbonate — a synthetic thermoplastic resin, a linear polymer of carbonic acid, used for molded products, films, and nonbreakable windows.
- polychromatic — having or exhibiting a variety of colors.
- polycistronic — of or relating to the transcription of two or more adjacent cistrons into a single messenger RNA molecule.
- polyoma virus — a small DNA-containing virus, of the papovavirus group, that can produce a variety of tumors in mice, hamsters, rabbits, and rats.
- polypropylene — a plastic polymer of propylene, (C 3 H 5) n , used chiefly for molded parts, electrical insulation, packaging, and fibers for wearing apparel.
- polyprotodont — any marsupial of the group Polyprotodontia, characterized by four or more upper incisor teeth on each side of the jaw: includes the opossums and bandicoots
- polyribosomal — relating to a polyribosome
- polysomnogram — a record of a person's sleep pattern, breathing, heart activity, and limb movements during sleep. Abbreviation: PSG.
- pony trekking — the act of riding ponies cross-country, esp as a pastime
- port of entry — port1 (def 3).
- portal system — a vascular arrangement in which blood from the capillaries of one organ is transported to the capillaries of another organ by a connecting vein or veins.
- possessionary — of, relating to, or characterized by possession
- post-tertiary — denoting or formed after the Tertiary period of geological time
- postcranially — affecting the postcranium
- postembryonic — occurring after the embryonic phase.
- postemergency — of, relating to, or occurring in the period after an emergency
- postsecondary — of or relating to education beyond high school: She completed her postsecondary education at a two-year college.
- potter's clay — a clay, suitably plastic and free of iron and other impurities, for use by potters.
- potty trained — Potty trained means the same as toilet trained.