17-letter words containing p, e, d, i
- midmorning prayer — the third of the seven canonical hours; terce
- midsagittal plane — a plane passing through the nasion when the skull is oriented in the Frankfurt horizontal.
- mind-body problem — the problem of explaining the relation of the mind to the body.
- mississippi delta — an area between the Mississippi and Yazoo rivers in the northwest of the state of Mississippi; it is very flat and fertile
- moon and sixpence — a novel (1919) by W. Somerset Maugham.
- mounted policeman — policemen who patrol on horseback
- muscle dysmorphia — a mental disorder primarily affecting males, characterized by obsessions about a perceived lack of muscularity, leading to compulsive exercising, use of anabolic steroids, etc. Compare body dysmorphic disorder.
- new guinea pidgin — the variety of Neo-Melanesian spoken in Papua New Guinea and neighbouring islands
- nitrogen peroxide — the equilibrium mixture of nitrogen dioxide and dinitrogen tetroxide
- non-corresponding — identical in all essentials or respects: corresponding fingerprints.
- nonproductiveness — The quality of being nonproductive.
- noun pre-modifier — a noun that occurs before and modifies another noun, as toy in toy store or tour in tour group.
- occipital condyle — a protrusion on the occipital bone of the skull that forms a joint with the first cervical vertebra, enabling the head to move relative to the neck.
- old age pensioner — An old age pensioner is a person who is old enough to receive an pension from their employer or the government.
- old contemptibles — the British expeditionary force to France in 1914
- one-time password — (security) (OTP) A security system that requires a new password every time a user authenticates themselves, thus protecting against an intruder replaying an intercepted password. OTP generates passwords using either the MD4 or MD5 hashing algorithms. The equivalent term "S/Key", developed by Bellcore, is a trademark of Telcordia Technologies, so the name OTP is used increasingly. See RFC 1760 - "The S/KEY One-Time Password System" and RFC 1938 - "A One-Time Password System".
- painted greenling — a greenling, Oxylebius pictus, inhabiting the Pacific coastal waters of North America, having a whitish body marked with black bands.
- pan and tilt head — a mounting device on which a camera may be rotated in a horizontal plane (pan) or in a vertical plane (tilt)
- paradise regained — an epic poem (1671) by John Milton.
- paradoxical sleep — REM sleep.
- paraperiodic acid — the crystalline compound H5IO6, an oxyacid of iodine
- parathyroidectomy — the excision of a parathyroid gland.
- paratyphoid fever — Also called paratyphoid fever. an infectious disease, similar in some of its symptoms to typhoid fever but usually milder, caused by any of several bacilli of the genus Salmonella other than S. typhi.
- parking attendant — a person who works for a traffic control agency and who issues tickets for parking violations
- parted per tierce — tierced.
- partially sighted — unable to see properly so that even with corrective aids normal activities are prevented or seriously hindered
- passive obedience — unquestioning obedience to authority
- pate de foie gras — See under foie gras.
- pere david's deer — a medium-sized, reddish-gray deer, Elaphurus davidianus, of which stocks were obtained in Peking in 1865 and brought to parks in Europe before the remaining Chinese deer were killed in 1900: the species is sustained in captivity.
- peridot of ceylon — a honey-colored tourmaline, used as a gem: not a true peridot.
- period-revolution — a rather large interval of time that is meaningful in the life of a person, in history, etc., because of its particular characteristics: a period of illness; a period of great profitability for a company; a period of social unrest in Germany.
- periodic function — a function of a real or complex variable that is periodic.
- periodic sentence — a sentence that, by leaving the completion of its main clause to the end, produces an effect of suspense, as in Unable to join the others at the dance because of my sprained ankle, I went to a movie.
- periodical cicada — seventeen-year locust.
- peripheral device — peripheral
- personal distance — personal space.
- perth and kinross — a council area of N central Scotland, corresponding mainly to the historical counties of Perthshire and Kinross-shire: part of Tayside Region from 1975 until 1996: chiefly mountainous, with agriculture, tourism, and forestry. Administrative centre: Perth. Pop: 135 990 (2003 est). Area: 5321 sq km (2019 sq miles)
- phenylacetic acid — a white crystalline, aromatic acid, C 8 H 8 O 2 , used in the manufacture of penicillin and in perfumes.
- phenylformic acid — benzoic acid.
- phumiphon aduldet — (Phumiphon Aduldet; Bhumibol Adulyadej) born 1927, king of Thailand since 1946.
- physical medicine — the branch of medicine dealing with the diagnosis and treatment of disease and injury by means of physical agents, as manipulation, massage, exercise, heat, or water.
- physical pendulum — any apparatus consisting of a body of possibly irregular shape allowed to rotate freely about a horizontal axis on which it is pivoted (distinguished from simple pendulum).
- pied-billed grebe — an American grebe, Podilymbus podiceps, having a whitish bill with a black band around it.
- pietro da cortona — Pietro da [pye-traw dah] /ˈpyɛ trɔ dɑ/ (Show IPA), (Pietro Berrettini) 1596–1669, Italian painter and architect.
- pillar-and-breast — room-and-pillar.
- pink-footed goose — a Eurasian goose, Anser brachyrhynchus, having a reddish-brown head, pink legs, and a pink band on its black beak
- platinic chloride — chloroplatinic acid.
- pocket dictionary — a small portable dictionary
- polar coordinates — Usually, polar coordinates. one of two coordinates used to locate a point in a plane by the length of its radius vector and the angle this vector makes with the polar axis (polar angle)
- police department — A police department is an official organization which is responsible for making sure that people obey the law.