12-letter words containing a, n, t, i, p, o
- patron saint — a saint regarded as the special guardian of a person, group, trade, country, etc.
- pauciloquent — using few words in speech or conversation
- paving stone — slab used to lay a path
- 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.
- pediculation — the act or process of growing a stalk or pedicle
- penalization — to subject to a penalty, as a person.
- pentacrinoid — a larval crinoid resembling members of the genus Pentacrinus
- pentapolitan — of or pertaining to a pentapolis
- 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
- perinatology — a field of medicine focusing on problems emerging during the perinatal period.
- 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.
- 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.
- phantom limb — a phenomenon characterized by the experience of pain, discomfort, or other sensation in the area of a missing limb or other body part, as a breast.
- phenotypical — the observable constitution of an organism.
- phentolamine — an alpha blocker, C 1 7 H 1 9 N 3 O, used to reduce hypertensive states caused by a catecholamine excess, as in the treatment of pheochromocytoma.
- 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.
- phonasthenia — difficult or abnormal voice production; vocal weakness.
- phonetic law — a statement of some regular pattern of sound change in a specific language, as Grimm's law or Verner's law.
- phonetically — Also, phonetical. of or relating to speech sounds, their production, or their transcription in written symbols.
- phonocamptic — possessing the property of reflecting sound or producing an echo
- phonotactics — the patterns in which the phonemes of a language may combine to form sequences.
- photo-ageing — premature wrinkling of the skin caused by overexposure to sunlight
- photoactinic — emitting radiation having the chemical effects of light and ultraviolet rays, as on a photographic film.
- photodynamic — the science dealing with light and its effects on living organisms.
- photogelatin — pertaining to any photographic process in which gelatin is used to receive or transfer a print.
- photomachine — a machine that prints copies of digital photographs
- phycoxanthin — a yellow pigment found in brown seaweeds and types of algae
- phytonadione — vitamin K1.
- pig-ignorant — extremely ignorant or unknowledgeable
- pigmentation — coloration, especially of the skin.
- pilot signal — a signal, as a flag or light, used to request a pilot.
- piltdown man — a hypothetical early modern human, assigned to the genus Eoanthropus, whose existence was inferred from skull fragments that were allegedly found at Piltdown, England, in 1912 but were exposed as fraudulent through chemical analysis in 1953.
- pinealectomy — a surgical operation to remove the pineal gland
- placentation — Anatomy, Zoology. the formation of a placenta. the manner of placement or construction of a placenta.
- placentiform — shaped like a placenta, with a flat rounded form
- plainclothes — Plainclothes police officers wear ordinary clothes instead of a police uniform.
- plastination — a technique for embalming bodies by impregnating whole organs with silicon polymers
- plastocyanin — a blue protein found in green plants and in some bacteria