12-letter words containing a, p, t, e, r, i
- 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.
- patrilateral — related through the father.
- patrilineage — lineal descent traced through the male line.
- peak traffic — traffic at the time it is most busy
- pearl millet — a tall grass, Pennisetum americanum (or P. glaucum), cultivated in Africa, Asia, and the southern U.S. for its edible seeds and as a forage plant.
- pearly white — white and lustrous as a pearl.
- 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.
- pediatrician — a physician who specializes in pediatrics.
- peltier heat — the heat gained or lost at a junction of a thermocouple due to the Peltier effect.
- penitentiary — a place for imprisonment, reformatory discipline, or punishment, especially a prison maintained in the U.S. by a state or the federal government for serious offenders.
- 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.
- perenniality — lasting for an indefinitely long time; enduring: her perennial beauty.
- 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
- performative — (of an expression or statement) performing an act by the very fact of being uttered, as with the expression “I promise,” that performs the act of promising.
- pericarditis — inflammation of the pericardium.
- 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
- perimetrical — the border or outer boundary of a two-dimensional figure.
- perinatology — a field of medicine focusing on problems emerging during the perinatal period.
- periostracum — the external, chitinlike covering of the shell of certain mollusks that protects the limy portion from acids.
- periphrastic — circumlocutory; roundabout.
- peristomatic — surrounding a leaf's stoma or stomata
- peritoneally — through the peritoneum
- peritrichate — (of bacteria) having flagella on the entire surface.
- permeability — the property or state of being permeable.
- 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
- perpetrating — to commit: to perpetrate a crime.
- perpetration — to commit: to perpetrate a crime.
- perpetualism — a belief in the permanence of a given thing; the belief that a given thing (e.g. the world, a political system) will last forever
- perpetualist — someone who holds to any form of perpetualism
- perpetuality — continuing or enduring forever; everlasting.
- perpetuating — to make perpetual.
- perpetuation — to make perpetual.
- 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.
- perspectival — a technique of depicting volumes and spatial relationships on a flat surface. Compare aerial perspective, linear perspective.
- perspicacity — keenness of mental perception and understanding; discernment; penetration.
- perspiration — a salty, watery fluid secreted by the sweat glands of the skin, especially when very warm as a result of strenuous exertion; sweat.
- perspiratory — of, relating to, or stimulating perspiration.
- pertinacious — holding tenaciously to a purpose, course of action, or opinion; resolute.
- perturbation — the act of perturbing.
- perturbative — having a tendency to perturb; disturbing.
- petaliferous — bearing or having petals.
- petite sirah — a dry red wine produced mainly in California
- petrifaction — the act or process of petrifying; the state of being petrified.