12-letter words containing e, p, a, c, r, i
- periodically — recurring at intervals of time: periodic revivals of an interest in handicrafts.
- periostracum — the external, chitinlike covering of the shell of certain mollusks that protects the limy portion from acids.
- periphrastic — circumlocutory; roundabout.
- peristomatic — surrounding a leaf's stoma or stomata
- peritrichate — (of bacteria) having flagella on the entire surface.
- perivisceral — surrounding or situated about the viscera.
- pernoctation — the act of staying all night in a place, esp for prayer or as a vigil
- perspectival — a technique of depicting volumes and spatial relationships on a flat surface. Compare aerial perspective, linear perspective.
- perspicacity — keenness of mental perception and understanding; discernment; penetration.
- pertinacious — holding tenaciously to a purpose, course of action, or opinion; resolute.
- pervicacious — extremely willful; obstinate; stubborn.
- petrifaction — the act or process of petrifying; the state of being petrified.
- petrifactive — having the ability to turn substances into stone
- 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).
- pharmaceutic — pertaining to pharmacy or pharmacists.
- 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.
- 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.
- pi character — any special character, such as an accent or mathematical symbol, which is not normally obtained in a standard type fount
- picnic races — horse races for amateur riders held in rural areas
- picrocarmine — a red powder containing carmine and picric acid which is used in staining processes
- pictorialize — to make pictorial; illustrate or represent with or as if with pictures.
- picture card — face card
- picture rail — bar from which pictures are hung
- picture sash — a large window sash, as for a picture window.
- piercing saw — a small, fine-gauge saw blade with uniformly spaced, angled teeth, inserted in a jeweler's saw frame and used to cut precious metal and such soft materials as ivory and shell.
- pig launcher — A pig launcher is a device which starts a pig moving without interrupting flow.
- pindaric ode — an ode consisting of several units, each of which is composed of a strophe and an antistrophe of identical form followed by a contrasting epode.
- pipe cleaner — a short length of twisted flexible wires covered with tufted fabric, used to clean the stem of a smoker's pipe and for various handicrafts.
- piperacillin — a broad-spectrum semisynthetic penicillin, C 2 3 H 2 6 N 5 NaO 7 , used against certain susceptible Gram-positive and Gram-negative bacteria and certain anaerobes, especially P. aeruginosa.
- piperic acid — a saturated organic acid (C12H10O4), derived from plants in the pepper family, that forms yellow crystals and can be oxidized to produce piperonal
- pirate coast — an independent federation in E Arabia, formed in 1971, now comprising seven emirates on the S coast (formerly, Pirate Coast or Trucial Coast) of the Persian Gulf, formerly under British protection: Abu Dhabi, Dubai, Sharjah, Ajman, Umm al-Qaiwain, Ras al-Khaimah (joined 1972), and Fujairah. About 32,300 sq. mi. (83,657 sq. km). Capital: Abu Dhabi. Abbreviation: U.A.E.
- pirate perch — a purplish North American freshwater fish, Aphredoderus sayanus, the adult of which has the vent located in back of the lower jaw.
- pkware, inc. — (company, compression) The company, founded by Phil Katz in 1986, which produces the PKZIP and PKUNZIP compression tools and libraries for many platforms. Address: 201 E. Pittsburgh Ave., Suite 400, Milwaukee, WI 53204 USA
- placentiform — shaped like a placenta, with a flat rounded form
- plaid screen — [XEROX PARC] A "special effect" that occurs when certain kinds of memory smashes overwrite the control blocks or image memory of a bit-mapped display. The term "salt and pepper" may refer to a different pattern of similar origin. Though the term as coined at PARC refers to the result of an error, some of the X demos induce plaid-screen effects deliberately as a display hack.
- point charge — an electric charge considered to exist at a single point, and thus having neither area nor volume.
- pointed arch — an arch having a pointed apex.
- polar circle — either the Arctic or the Antarctic Circle.
- policymakers — a person responsible for making policy, especially in government.
- politicaster — an ill-suited or disliked politician
- porcelainite — Mineralogy. mullite.
- porcelainize — to make into or coat with porcelain or something resembling porcelain.
- porcelainous — made of or resembling porcelain
- porcellanise — to bake into porcelain
- porcellanite — hard and dense rock resembling unglazed porcelain
- porcellanize — to bake into porcelain
- postcardlike — (of a scene) resembling a postcard
- practitioner — a person engaged in the practice of a profession, occupation, etc.: a medical practitioner.
- praxinoscope — a toy in which a sequence of images, depicted on the inner surface of a cylinder and reflected in a series of mirrors, gives the illusion of motion as the cylinder rotates