15-letter words containing s, u, l, p, i
- suspension file — a folder for documents that has protruding ends that can be hung over rails for storage
- to pull strings — If you pull strings, you use your influence with other people in order to get something done, often unfairly.
- tricuspid valve — the valve, consisting of three triangular flaps of tissue between the right auricle and ventricle of the heart, that keeps blood from flowing back into the auricle.
- trivial pursuit — a board game that is based the ability to answer questions on popular culture and general knowledge
- turk's-cap lily — either of two lilies, Lilum martagon or L. superbum, having nodding flowers with the perianth segments rolled backward.
- ultramicroscope — an instrument that uses scattering phenomena to detect the position of objects too small to be seen by an ordinary microscope.
- ultramicroscopy — the use of the ultramicroscope.
- unapostolically — in an unapostalic manner
- unapprehensible — not able to be understood or comprehended
- uncomplaisantly — in an uncomplaisant manner
- uncompromisable — that cannot or should not be compromised
- undisciplinable — unable to be disciplined or controlled
- unphilosophical — not adhering to philosophical theory or principles
- unpolished rice — a partly refined rice, hulled and deprived of its germ but retaining some bran.
- unpretentiously — without pretension
- unprogressively — in an unprogressive manner
- unsportsmanlike — a man who engages in sports, especially in some open-air sport, as hunting, fishing, racing, etc.
- upper peninsula — a peninsula in the northern US between Lakes Superior and Michigan, constituting the N part of the state of Michigan
- upsetting lever — the horizontal distance between the center of gravity, acting downward, and the center of buoyancy, acting upward, when they are so placed as to form a couple (upsetting couple) tending to capsize the boat.
- viper's bugloss — the blueweed.
- wallpaper music — music that is pleasant but not interesting, so people do not pay much attention to it
- walpurgis night — (especially in medieval German folklore) the evening preceding the feast day of St. Walpurgis, when witches congregated, especially on the Brocken.
- washing-up bowl — plastic bowl used for washing dishes
- whiplash injury — the lash of a whip.
- white corpuscle — white blood cell.
- winter purslane — a plant, Montia perfoliata, native to western North America, of the purslane family, having edible, egg-shaped leaves and clusters of small, white flowers.
- yorke peninsula — a peninsula in S Australia between Spencer Gulf and the Gulf of St. Vincent. 160 miles (257 km) long and 20–35 miles (32–56 km) wide.