20-letter words containing p, a, r, t, y, m
- primitive polynomial — a polynomial that has content equal to 1. Compare content1 (def 11a).
- proprietary medicine — a drug or agent manufactured and distributed under a trade name
- pseudoparenchymatous — (in certain fungi and red algae) a compact mass of tissue, made up of interwoven hyphae or filaments, that superficially resembles plant tissue.
- pythagoras's theorem — (mathematics) The theorem of geometry, named after Pythagoras, of Samos, Ionia, stating that, for a right-angled triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides. I.e. if the longest side has length A and the other sides have lengths B and C (in any units), A^2 = B^2 + C^2 (2004-02-12)
- quantum cryptography — a method of coding information based on quantum mechanics, which is said to be unbreakable
- rapid transit system — a rail or other system providing rapid public transport
- rocky mountain sheep — bighorn.
- royal leamington spa — a city in Warwickshire, central England: health resort.
- supplementary angles — either of two angles that added together produce an angle of 180°.
- the (great) pyramids — the three large pyramids at Gîza, Egypt: the largest is the Pyramid of Khufu
- to make up your mind — If you make up your mind or make your mind up, you decide which of a number of possible things you will have or do.
- toxemia of pregnancy — an abnormal condition of pregnancy characterized by hypertension, fluid retention, edema, and the presence of protein in the urine.
- triphenylmethane dye — any of a great number of dyes, as gentian violet, fuchsin, and rosaniline, produced from triphenylmethane by replacement of the ring hydrogen atoms with hydroxy, amino, sulfo, or other atoms or groups.
- upper yosemite falls — a section of Yosemite Falls in central California, in the Yosemite National Park that is 436 m (1430 ft) high
- winter olympic games — an international contest of winter sports, esp skiing, held every four years