13-letter words containing a, s, l, o, p
- the pole star — the star closest to the N celestial pole at any particular time. At present this is Polaris, but it will eventually be replaced by some other star owing to precession of the earth's axis
- thermoplastic — soft and pliable when heated, as some plastics, without any change of the inherent properties.
- thespian lion — a lion that attacked the flocks of Amphitryon and was killed by Hercules.
- thoracoplasty — the operation removing selected portions of the ribs to collapse part of the underlying lung or an abnormal pleural space, usually in the treatment of tuberculosis.
- total eclipse — an eclipse in which the surface of the eclipsed body is completely obscured.
- total impulse — a measure of the maximum momentum that a given reaction engine and fuel supply can impart to a vehicle.
- townsend plan — a pension plan, proposed in the U.S. in 1934 but never passed by Congress, that would have awarded $200 monthly to persons over 60 who were no longer gainfully employed, provided that such allowance was spent in the U.S. within 30 days.
- toxoplasmosis — infection with the parasite Toxoplasma gondii, transmitted to humans by consumption of insufficiently cooked meat containing the parasite or by contact with contaminated cats or their feces: the illness produced is usually mild, but in pregnant women may damage the fetus.
- transpersonal — extending beyond or transcending the personal.
- transportedly — in a passionate or rapturous manner
- triploblastic — having three primary germ layers, as the embryos of vertebrates.
- tropical fish — any of numerous small, usually brightly colored fishes, indigenous to the tropics, and often kept and bred in home aquariums.
- tympanoplasty — reconstruction of the eardrum and the bones of the middle ear.
- un-personable — of pleasing personal appearance; handsome or comely; attractive.
- uncomplaisant — not eager to please; not compliant or obliging
- unpostponable — to put off to a later time; defer: He has postponed his departure until tomorrow.
- unsupportable — capable of being supported; endurable; maintainable.
- visual foxpro — (database) A Microsoft database derived from Fox Software's FoxPRO.
- wafflestomper — a shoe with a thick sole resembling a waffle
- walter piston — Walter, 1894–1976, U.S. composer.
- xiphiplastron — the fourth lateral plate of a turtle's plastron
- zygapophyseal — one of the four processes of a vertebra, occurring in pairs that interlock each vertebra with the vertebrae above and below.