17-letter words containing d, n, r

odour of sanctity — sanctimoniousness
of its own accord — If something happens of its own accord, it seems to happen by itself, without anyone making it happen.
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 norman french — Norman French (sense 1)
old red sandstone — a thick sequence of sedimentary rock (generally, but not always, red) deposited in Britain and NW Europe during the Devonian period
old south arabian — a group of four closely related Semitic languages, having a writing system and used from about the eighth to the fifth centuries b.c. in the southern part of Arabia.
old spanish trail — an overland route from Santa Fe, N. Mex., to Los Angeles, Calif., first marked out in 1776 by Spanish explorers and missionaries.
on (or off) duty — at (or temporarily relieved from) one's work, duty, etc.
on a razor's edge — in an acute dilemma
on one's doorstep — very close or accessible
on the barrelhead — upon being presented for sale; at the time of delivery
on the other hand — the terminal, prehensile part of the upper limb in humans and other primates, consisting of the wrist, metacarpal area, fingers, and thumb.
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".
online dictionary — a dictionary that is available on the Internet or World Wide Web and accessed through a Web browser using a computer or a mobile device, primarily by typing a query term into a search box on the site. Online dictionaries like Dictionary.com offer immediate, direct access through large databases to a word's spelling and meanings, plus a host of ancillary information, including its variant spellings, pronunciation, inflected forms, origin, and derived forms, as well as supplementary notes on matters of interest or concern about how the word is used: Some people think online dictionaries will make print dictionaries obsolete.
open-end mortgage — a mortgage agreement against which new sums of money may be borrowed under certain conditions.
order of business — a task assigned or to be dealt with: Our first order of business is to reduce expenses.
organized ferment — ferment (def 1).
organized militia — a former military organization functioning under both state and federal authority.
orthovanadic acid — an oxyacid of vanadium, known chiefly in the form of its vanadate salts. Formula: H3VO4
overdetermination — the concept that a single emotional symptom or event, as a dream or a slip of the tongue, may be caused by more than one factor.
overhead lighting — lighting which throws light downwards by being situated on the ceiling or having a downward shade, etc
oyer and terminer — (in some U.S. states) any of various higher criminal courts.
painted greenling — a greenling, Oxylebius pictus, inhabiting the Pacific coastal waters of North America, having a whitish body marked with black bands.
paradise regained — an epic poem (1671) by John Milton.
parathyroid gland — any of several small oval glands usually lying near or embedded in the thyroid gland.
paratungstic acid — an oxyacid acid of tungsten. Formula: H10W12O14
parking attendant — a person who works for a traffic control agency and who issues tickets for parking violations
peaches and cream — If you say that a woman or a girl has a peaches and cream complexion, you mean that she has very clear, smooth, pale skin.
performance drugs — the drugs that are taken illegally by athletes to enhance their sporting performance
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.
permanent address — a fixed address
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)
phenylformic acid — benzoic acid.
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.
pittsburg landing — a village in SW Tennessee, on the Tennessee River: battle of Shiloh in 1862.
plastics industry — the industry that makes plastics
platinic chloride — chloroplatinic acid.
plug and feathers — an apparatus for splitting stone, consisting of two tapered bars (feathers) inserted into a hole drilled into the stone, between which a narrow wedge (plug) is hammered to spread them.
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.
post-and-rail tea — (in the 19th century) a coarse tea in which floating particles resembled a post-and-rail fence
postural drainage — a therapy for clearing congested lungs by placing the patient in a position for drainage by gravity, often accompanied by percussion with hollowed hands.
potential divider — a resistor or series of resistors connected to a voltage source and used to provide voltages that are fractions of that of the source.
pre-modifications — an act or instance of modifying.

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