9-letter words containing i, p, r, o
- perfusion — the act of perfusing.
- pergolesi — Giovanni Battista [jaw-vahn-nee baht-tees-tah] /dʒɔˈvɑn ni bɑtˈtis tɑ/ (Show IPA), 1710–36, Italian composer.
- periaktos — an ancient device used for changing theatre scenery, usually consisting of a revolving triangular prism with different scenes painted on each face; the device was heavily used in the Renaissance
- peribolos — a colonnade or wall surrounding a Classical temple
- peribonca — a river in central Quebec, Canada, flowing S to Lake St. John. 280 miles (451 km) long.
- pericopae — a selection or extract from a book.
- peridotic — of, relating to, or containing peridot
- peridrome — (in Classical architecture) a colonnaded walkway running round a building, esp around a Classical temple
- perimorph — a crystal of one mineral enclosing that of another mineral. Compare endomorph (def 1).
- periodate — a salt of a periodic acid, as sodium periodate, Na 2 H 3 IO 6 .
- periodide — an iodide with the maximum proportion of iodine.
- periodize — to divide (a portion of time) into periods
- periproct — (in certain echinoids) that part of the body surface bordering the anus.
- periscope — an optical instrument for viewing objects that are above the level of direct sight or in an otherwise obstructed field of vision, consisting essentially of a tube with an arrangement of prisms or mirrors and, usually, lenses: used especially in submarines.
- perispore — a membrane surrounding a spore.
- peristome — Botany. the one or two circles of small, pointed, toothlike appendages around the orifice of a capsule or urn of mosses, appearing when the lid is removed.
- peronista — Peronist.
- perotinus — ("Magnus Magister") fl. late 12th to early 13th century, French composer.
- perovskia — a member of the Perovskia genus of aromatic plant native to central Asia, esp Russian sage, Perovskia atriplicifolia
- peroxidic — of the nature of a peroxide; containing a peroxide or constituting part of a peroxide group
- persimmon — any of several trees of the genus Diospyros, especially D. virginiana, of North America, bearing astringent, plumlike fruit that is sweet and edible when ripe, and D. kaki, of Japan and China, bearing soft, red or orange fruit.
- personify — to attribute human nature or character to (an inanimate object or an abstraction), as in speech or writing.
- pertusion — the process or act of making a hole with a stabbing or penetrating implement
- pervasion — to become spread throughout all parts of: Spring pervaded the air.
- petrichor — a distinctive scent, usually described as earthy, pleasant, or sweet, produced by rainfall on very dry ground.
- petronius — Gaius (ˈɡaɪəs), known as Petronius Arbiter. died 66 ad, Roman satirist, supposed author of the Satyricon, a picaresque account of the licentiousness of contemporary society
- petrosian — Tigran (tiɡˈran). 1929–84, Soviet chess player; world champion (1963–69)
- pforzheim — a city in W Baden-Württemberg, in SW Germany.
- pharaonic — (sometimes lowercase) of or like a Pharaoh: living in Pharaonic splendor.
- philhorse — the horse, in a group of horses that are used to pull a carriage etc, which is at the back and nearest the object being pulled
- phlorizin — a bitter, crystalline glucoside, C 2 1 H 2 4 O 1 0 , obtained from the root bark of the apple, pear, cherry, etc.: formerly used as a tonic and in the treatment of malaria; now used chiefly in biochemical research.
- phosphori — plural of phosphorus
- phronesis — wisdom in determining ends and the means of attaining them.
- piano bar — a cocktail lounge featuring live piano music.
- pick over — to choose or select from among a group: to pick a contestant from the audience.
- pickaroon — to act or operate as a pirate or brigand.
- pickproof — (of a lock) designed so that it cannot be picked.
- picocurie — a trillionth of a curie, which is a unit of radioactivity
- picofarad — one trillionth of a farad. Abbreviation: pF.
- picometer — one trillionth of a meter
- picometre — a trillionth fraction of metre
- pictogram — pictograph.
- pictorial — pertaining to, expressed in, or of the nature of a picture.
- piecework — work done and paid for by the piece.
- pied noir — an Algerian-born French person.
- piepowder — a travelling market trader, merchant or similar traveller
- pifferaro — someone who plays the piffero
- pignorate — to pledge or pawn
- pillarbox — a technique for displaying a video recorded in portrait orientation on a wider screen by reducing its size but retaining the aspect ratio, with black bands filling the screen to the right and left of the picture (often used attributively): pillarbox format. Compare letterbox (def 2).
- pilloried — a wooden framework erected on a post, with holes for securing the head and hands, formerly used to expose an offender to public derision.