12-letter words containing p, e, r, y
- periodically — recurring at intervals of time: periodic revivals of an interest in handicrafts.
- perionychium — the epidermis surrounding the base and sides of a fingernail or toenail.
- peripherally — pertaining to, situated in, or constituting the periphery: peripheral resistance on the outskirts of the battle area.
- peritoneally — through the peritoneum
- permeability — the property or state of being permeable.
- permissively — habitually or characteristically accepting or tolerant of something, as social behavior or linguistic usage, that others might disapprove or forbid.
- permittivity — Electricity. the ratio of the flux density produced by an electric field in a given dielectric to the flux density produced by that field in a vacuum.
- perniciously — causing insidious harm or ruin; ruinous; injurious; hurtful: pernicious teachings; a pernicious lie.
- peroxy group — the bivalent group –O 2 –, derived from hydrogen peroxide.
- peroxyborate — perborate.
- perpetuality — continuing or enduring forever; everlasting.
- perplexingly — to cause to be puzzled or bewildered over what is not understood or certain; confuse mentally: Her strange response perplexed me.
- persistently — persisting, especially in spite of opposition, obstacles, discouragement, etc.; persevering: a most annoyingly persistent young man.
- personifying — to attribute human nature or character to (an inanimate object or an abstraction), as in speech or writing.
- perspicacity — keenness of mental perception and understanding; discernment; penetration.
- perspiratory — of, relating to, or stimulating perspiration.
- persuasively — able, fitted, or intended to persuade: a very persuasive argument.
- 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
- phanerophyte — a tree or shrub that bears its perennating buds more than 25 cm above the level of the soil
- phased array — a radar antenna consisting of an array of dipoles that are excited in or out of phase with each other to control beam direction and radiation pattern without moving the antenna. Compare dipole (def 3).
- phenocrystic — relating to a phenocryst
- phenyl group — the univalent group C 6 H 5 –, derived from benzene.
- phlebography — venography.
- photopolymer — a polymer or plastic that undergoes a change in physical or chemical properties when exposed to light.
- phototherapy — treatment of disease, especially of the skin, by means of light rays.
- phreatophyte — a long-rooted plant that absorbs its water from the water table or the soil above it.
- phrontistery — a place or establishment for thinking, studying, or learning
- phylacteries — Judaism. either of two small, black, leather cubes containing a piece of parchment inscribed with verses 4–9 of Deut. 6, 13–21 of Deut. 11, and 1–16 of Ex. 13: one is attached with straps to the left arm and the other to the forehead during weekday morning prayers by Orthodox and Conservative Jewish men.
- phytographer — a botanist involved with plant description
- phytohormone — hormone (def 3).
- phytotherapy — the use of plants and plant products for medicinal purposes
- piano player — pianist.
- piet-my-vrou — a cuckoo, Notococcyx solitarius, having a red breast
- plain turkey — a bustard
- play reading — the activity when a group of people read the parts of a play
- play therapy — a form of psychotherapy used chiefly with children, in which patients act out situations in play that are expressive of their emotional problems, conflicts, etc.
- player piano — a piano that can play automatically when the keys are actuated electronically or by a pneumatic device controlled by a piano roll.
- pneumography — the process of recording the movements of the thorax in respiration.
- poddy-dodger — a cattle thief who steals unbranded calves
- policyholder — the individual or firm in whose name an insurance policy is written; an insured.
- policymakers — a person responsible for making policy, especially in government.
- polycentrism — the doctrine that a plurality of independent centers of leadership, power, or ideology may exist within a single political system, especially Communism.
- polydisperse — of or noting a sol that contains particles of different sizes.
- polyembryony — the production of more than one embryo from one egg.
- polyhedrosis — an often fatal disease of certain insect larvae or decapod crustaceans, caused by viruses containing DNA.
- polyisoprene — a thermoplastic polymer, (C 5 H 8) n , the major constituent of natural rubber and also obtained synthetically.
- polyneuritis — inflammation of several nerves at the same time; multiple neuritis.
- polyoestrous — polyestrous.
- polyribosome — polysome.