12-letter words containing p, o, i, r
- 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
- phallocratic — relating to a male, or the beliefs assumed by such, who assumes authority over females due to his maleness
- 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
- 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.
- philharmonic — fond of or devoted to music; music-loving: used especially in the name of certain musical societies that sponsor symphony orchestras (Philharmonic Societies) and hence applied to their concerts (philharmonic concerts)
- philodendron — a tropical American climbing plant belonging to the genus Philodendron, of the arum family, usually having smooth, shiny, evergreen leaves, often used as an ornamental houseplant.
- phonographic — of, relating to, or characteristic of a phonograph.
- phosphaturia — the presence of an excessive quantity of phosphates in the urine.