17-letter words containing r, o, t, h, l
- 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.
- omphalomesenteric — (anatomy) Of or pertaining to the umbilicus and mesentery.
- on the barrelhead — upon being presented for sale; at the time of delivery
- once over lightly — a hasty or superficial treatment, look, examination, etc.; once-over: The maid gave the room the once-over-lightly.
- once-over-lightly — a hasty or superficial treatment, look, examination, etc.; once-over: The maid gave the room the once-over-lightly.
- ortho-nitrophenol — any compound derived from phenol by the replacement of one or more of its ring hydrogen atoms by the nitro group.
- orthogonal matrix — a matrix that is the inverse of its transpose so that any two rows or any two columns are orthogonal vectors
- orthogonalization — (mathematics) The process of converting a set of functions or vectors into orthogonal ones.
- out of this world — the earth or globe, considered as a planet.
- overhead lighting — lighting which throws light downwards by being situated on the ceiling or having a downward shade, etc
- oystershell scale — a scale insect, Lepidosaphes ulmi, having a scale shaped like the shell of an oyster, which infests various deciduous trees and shrubs.
- pair annihilation — Physics. annihilation (def 3a).
- paleoanthropology — the study of the origins and predecessors of the present human species, using fossils and other remains.
- paleobiochemistry — the study of biochemical processes that occurred in fossil life forms.
- parathyroid gland — any of several small oval glands usually lying near or embedded in the thyroid gland.
- pastoral symphony — the Symphony No. 6 in F major (1807–08) by Ludwig van Beethoven.
- pastoral theology — the branch of theology dealing with the responsibilities of members of the clergy to the people under their care.
- pathological liar — a person who tells lies frequently, with no rational motive for doing so.
- patriarchal cross — a Latin cross having a shorter crosspiece above the customary one.
- peer of the realm — any of a class of peers in Great Britain and Ireland entitled by heredity to sit in the House of Lords.
- pentachlorophenol — a white, crystalline, water-insoluble powder, C 6 Cl 5 OH, used chiefly in fungicides, disinfectants, and wood preservatives.
- perchloroethylene — tetrachloroethylene.
- personality clash — friction between two people who have different personalities or points of view
- philanthropically — of, pertaining to, engaged in, or characterized by philanthropy; benevolent: a philanthropic foundation.
- phlebotomus fever — sandfly fever.
- photofluorography — photography of images produced by a fluoroscopic examination, used in x-ray examination of the lungs of large groups of people.
- platinic chloride — chloroplatinic acid.
- plymouth brethren — a religious sect founded c. 1827, strongly Puritanical in outlook and prohibiting many secular occupations for its members. It combines elements of Calvinism, Pietism, and millenarianism, and has no organized ministry
- police helicopter — a helicopter used in police operations, for example in traffic control, or for observation
- polystyrene chips — small pieces of polystyrene used for insulating or packing
- potato leafhopper — any of various leafhoppers that are serious pests, damaging a wide variety of cultivated and wild plants, especially potatoes.
- pre-technological — of or relating to technology; relating to science and industry.
- preferential shop — a shop in which union members are preferred, usually by agreement of an employer with a union.
- prothoracic gland — either of a pair of endocrine glands in the anterior thorax of some insects, functioning to promote the series of molts from hatching to adulthood.
- pseudo-historical — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
- pythagorean scale — the major scale as derived acoustically by Pythagoras from the perfect fifth.
- radio in the loop — Wireless Local Loop
- rehospitalization — the act, process, or state of being hospitalized.
- reticulate python — a python, Python reticulatus, of southeastern Asia and the East Indies, sometimes growing to a length of 32 feet (10 meters): usually considered to be the largest snake in the world.
- revealed theology — theology based on the doctrine that all religious truth is derived exclusively from the revelations of God to humans.
- rhetorical stress — stress required by the meaning of a line, as distinguished from that required by the meter.
- rhinoceros beetle — any of several scarabaeid beetles, especially of the genus Dynastes, which comprises the largest beetles, characterized by one or more horns on the head and prothorax.
- rhode island bent — a European pasture grass, Agrostis tenuis, naturalized in North America, having red flower clusters.
- right-to-work law — a state law making it illegal to refuse employment to a person for the sole reason that he or she is not a union member.
- rocket technology — the technology of the design, operation, maintenance, and launching of rockets
- rodolphe kreutzer — Rodolphe [raw-dawlf] /rɔˈdɔlf/ (Show IPA), 1766–1831, French violinist.
- roll with a punch — to move in the same direction as a punch thrown at one so as to lessen its force
- roman catholicism — the faith, practice, and system of government of the Roman Catholic Church.
- roof of the world — Tibet, Plateau of.