12-letter words containing n, o, p, e, r
- 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.
- perispomenon — (of a Greek word) bearing a circumflex accent on the last syllable
- peristeronic — of, pertaining to, or resembling pigeons
- peritoneally — through the peritoneum
- perle cotton — a two-ply mercerized cotton thread used chiefly in handweaving and needlework.
- 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
- personalness — of, relating to, or coming as from a particular person; individual; private: a personal opinion.
- 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.
- pertinacious — holding tenaciously to a purpose, course of action, or opinion; resolute.
- perturbation — the act of perturbing.
- pest control — rats, insects: extermination
- 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.
- petrobutanol — butyl alcohol.
- petrogenesis — the branch of petrology dealing with the origin and formation of rocks.
- petrogenetic — relating to petrogenesis
- 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).
- phanerophyte — a tree or shrub that bears its perennating buds more than 25 cm above the level of the soil
- phenocrystic — relating to a phenocryst
- phenyl group — the univalent group C 6 H 5 –, derived from benzene.
- 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.
- phone number — of individual, business
- phone phreak — a person who uses computers or other electronic devices to place long-distance telephone calls without paying toll charges.
- photocurrent — an electric current produced by a photoelectric effect.
- photoengrave — to make a photoengraving of.
- photoneutron — a neutron emitted from a nucleus during photodisintegration.
- photonuclear — of, relating to, or caused by the collision of high-energy photons with the nucleus of an atom.
- phrasemonger — phrasemaker (def 2).
- 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.
- phrenologize — to treat with phrenology or phrenological methods
- phrontistery — a place or establishment for thinking, studying, or learning
- phytohormone — hormone (def 3).
- piano player — pianist.
- picrocarmine — a red powder containing carmine and picric acid which is used in staining processes
- picturephone — a type of telephone where users can see each other as they talk, through the transmission of video images
- pigeon grape — a high-climbing vine, Vitis aestivalis, of the eastern U.S., having leaves that are dull above and rusty beneath, and bearing black, edible fruit.