12-letter words containing p, e, r, i, o
- 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.
- perfusionist — a medical technician or nurse who monitors and operates equipment that oxygenates the blood, as during open-heart surgery
- perichoresis — the relationship between or interlinking of the three Persons of the Trinity (Father, Son, and Holy Spirit)
- 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.
- period costs — Period costs are general costs that cannot be associated with a particular product, such as utilities or insurance.
- period drama — a drama set in a particular historical period
- period piece — something, as a novel, painting, or building, of interest or value primarily because it evokes or epitomizes a particular period of history.
- periodic law — the law that the properties of the elements are periodic functions of their atomic numbers.
- periodically — recurring at intervals of time: periodic revivals of an interest in handicrafts.
- 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.
- perionychium — the epidermis surrounding the base and sides of a fingernail or toenail.
- periostracum — the external, chitinlike covering of the shell of certain mollusks that protects the limy portion from acids.
- perispomenon — (of a Greek word) bearing a circumflex accent on the last syllable
- peristeronic — of, pertaining to, or resembling pigeons
- peristomatic — surrounding a leaf's stoma or stomata
- peritoneally — through the peritoneum
- peritrichous — (of bacteria) having a uniform distribution of flagella over the body surface.
- permissioned — authorization granted to do something; formal consent: to ask permission to leave the room.
- perniciously — causing insidious harm or ruin; ruinous; injurious; hurtful: pernicious teachings; a pernicious lie.
- 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.
- personalised — to have marked with one's initials, name, or monogram: to personalize stationery.
- personalized — customized
- personifying — to attribute human nature or character to (an inanimate object or an abstraction), as in speech or writing.
- 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.
- pervicacious — extremely willful; obstinate; stubborn.
- petaliferous — bearing or having petals.
- 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.
- petrochemist — someone who studies petrochemistry or works in the petrochemical industry
- petrogenesis — the branch of petrology dealing with the origin and formation of rocks.
- petrogenetic — relating to petrogenesis
- petroglyphic — relating to or having the characteristics of a petroglyph or carving made in rock
- petrophysics — the analysis of the constitution and characteristics of rocks
- phanerogamic — any of the Phanerogamia, a former primary division of plants comprising those having reproductive organs; a flowering plant or seed plant (opposed to cryptogam).
- pharmacolite — hydrous calcium arsenate, 2CaO⋅As 2 O 5 ⋅5H 2 O, formed by natural alteration of mineral deposits containing arsenopyrite and arsenical ores of cobalt and silver.
- pharmacopeia — a book published usually under the jurisdiction of the government and containing a list of drugs, their formulas, methods for making medicinal preparations, requirements and tests for their strength and purity, and other related information.
- phenocrystic — relating to a phenocryst