20-letter words containing r, e, p, o, l, i
- special relationship — the exceptionally close political, diplomatic, cultural and historical relations between the United States and the United Kingdom
- spectrophotoelectric — pertaining to the relationship between the wavelength of the incident radiation and the number of electrons released by a photoelectric substance.
- spherical aberration — variation in focal length of a lens or mirror from center to edge, due to its spherical shape.
- spherical coordinate — Usually, spherical coordinates. any of three coordinates used to locate a point in space by the length of its radius vector and the angles this vector makes with two perpendicular polar planes.
- spiral of archimedes — a curve that is the locus of a point that moves outward with uniform speed along a vector, beginning at the origin, while the vector rotates about the origin with uniform angular velocity. Equation (in polar coordinates): r = aθ.
- spotted crane's-bill — the American wild geranium, Geranium maculatum.
- state highway patrol — a state's road traffic police
- synoptic meteorology — a branch of meteorology analyzing data collected simultaneously over a wide region, for the purpose of weather forecasting.
- telephone subscriber — a person who subscribes to a telephone service
- teletype corporation — (company) The company which made Teletype teletypewriters. Address: Skokie, Illinois, USA.
- television programme — a programme broadcast on television
- the legal profession — the profession of law
- to line your pockets — If you say that someone is lining their own or someone else's pockets, you disapprove of them because they are making money dishonestly or unfairly.
- triple witching hour — the last hour of trading on the New York Stock Exchange on the four Fridays each year when stock options, stock index futures, and options on such futures simultaneously expire: regarded as a time of extreme volatility in trading.
- tropical continental — a type of warm, dry air mass originating at low latitudes over land areas
- tropical disturbance — a very weak, or incipient, tropical cyclone.
- turnip-rooted celery — celeriac.
- unemployment figures — statistics relating to the number of people who are out of work
- upper yosemite falls — a section of Yosemite Falls in central California, in the Yosemite National Park that is 436 m (1430 ft) high
- vertical envelopment — envelopment of an enemy accomplished by parachuting and landing airborne troops at the rear of the enemy's position.
- white people problem — a fairly minor problem, complaint, etc., associated with a relatively high standard of living; a first world problem.
- winter olympic games — an international contest of winter sports, esp skiing, held every four years
- woolly spider monkey — a rare related monkey, Brachyteles arachnoides, of SE Brazil
- working relationship — a relationship with a colleague, boss or employee