12-letter words containing i, o, n, t, r
- pantisocracy — a community, social group, etc, in which all have rule and everyone is equal
- paralation c — Paralation embedded in C. Under development.
- paralyzation — to affect with paralysis.
- paranthelion — a bright spot in the sky caused by refraction and occurring at an angular distance from the sun of between 90° and 140°
- paronomastic — the use of a word in different senses or the use of words similar in sound to achieve a specific effect, as humor or a dual meaning; punning.
- partial tone — one of the pure tones forming a part of a complex tone.
- parting shot — a threat, insult, condemnation, sarcastic retort, or the like, uttered upon leaving.
- partitioning — Partitioning is when a solute is distributed between two phases in a separation process.
- passionfruit — any edible fruit of a passionflower, as the maypop.
- patroclinous — inheritance in which the traits of the offspring are derived primarily from the paternal parent (opposed to matrocliny).
- patron saint — a saint regarded as the special guardian of a person, group, trade, country, etc.
- pectoral fin — (in fishes) either of a pair of fins usually situated behind the head, one on each side, and corresponding to the forelimbs of higher vertebrates.
- pentacrinoid — a larval crinoid resembling members of the genus Pentacrinus
- perceptional — the act or faculty of perceiving, or apprehending by means of the senses or of the mind; cognition; understanding.
- perfectation — the action or process of becoming or causing to become perfect or complete
- perforations — the holes punched that allow individual stamps, coupons, etc to be easily separated
- perfusionist — a medical technician or nurse who monitors and operates equipment that oxygenates the blood, as during open-heart surgery
- pericynthion — the point at which a spacecraft launched from earth into a lunar orbit is nearest the moon
- perinatology — a field of medicine focusing on problems emerging during the perinatal period.
- periodontics — the branch of dentistry dealing with the study and treatment of diseases of the periodontium.
- periodontist — a specialist in periodontics.
- periodontium — the bone, connective tissue, and gum surrounding and supporting a tooth.
- peristeronic — of, pertaining to, or resembling pigeons
- peritoneally — through the peritoneum
- pernoctation — the act of staying all night in a place, esp for prayer or as a vigil
- perorational — of, pertaining to, or characteristic of a peroration
- peroxidation — a type of reaction in which oxygen atoms are formed leading to the production of peroxides. It is stimulated in the body by certain toxins and infections
- perpetration — to commit: to perpetrate a crime.
- perpetuation — to make perpetual.
- perquisition — an intensive and meticulous examination, pursuit, or hunt for something
- persian knot — a hand-tied knot, used in rug weaving, in which the ends of yarn looped around a warp thread appear at each of the interstices between adjacent threads and produce a compact and relatively even pile effect.
- perspiration — a salty, watery fluid secreted by the sweat glands of the skin, especially when very warm as a result of strenuous exertion; sweat.
- pertinacious — holding tenaciously to a purpose, course of action, or opinion; resolute.
- perturbation — the act of perturbing.
- petrifaction — the act or process of petrifying; the state of being petrified.
- petrobrusian — a member of a 12th-century sect in S France that rejected the Mass, infant baptism, prayers for the dead, sacerdotalism, the veneration of the cross, and the building of churches.
- petrogenesis — the branch of petrology dealing with the origin and formation of rocks.
- petrogenetic — relating to petrogenesis
- phenocrystic — relating to a phenocryst
- philanthropy — altruistic concern for human welfare and advancement, usually manifested by donations of money, property, or work to needy persons, by endowment of institutions of learning and hospitals, and by generosity to other socially useful purposes.
- 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
- picturephone — a type of telephone where users can see each other as they talk, through the transmission of video images
- pig-ignorant — extremely ignorant or unknowledgeable
- pilot burner — pilot light (def 1).
- pinot grigio — a variety of grape, grown in Italy for wine-making
- pinturicchio — real name Bernardino di Betto. ?1454–1513, Italian painter of the Umbrian school
- pipe routing — Pipe routing is the planning of pipeline layout, which includes considerations of neatness, economy, and safety.
- piston skirt — The piston skirt is the cylindrical walls of a piston.
- placentiform — shaped like a placenta, with a flat rounded form