19-letter words containing c, o, u, p, n
- sexual reproduction — reproduction involving the union of gametes.
- south pacific ocean — the part of the Pacific Ocean extending S from the Equator to the Antarctic continent.
- southern crab apple — a tree, Malus angustifolia, of the eastern U.S., having oblong leaves, fragrant, pink or rose-colored flowers, and small, round, yellow-green fruit.
- specular reflection — Specular reflection is reflection of heat or light in which the angles of different parts of the surface are important.
- speculative fiction — a broad literary genre encompassing any fiction with supernatural, fantastical, or futuristic elements
- sphere of influence — any area in which one nation wields dominant power over another or others.
- stationery cupboard — a cupboard where things like paper, pens and paper clips are kept
- strict counterpoint — the application of the rules of counterpoint as an academic exercise
- substitution cipher — a cipher that replaces letters of the plain text with another set of letters or symbols.
- succession of crops — the continuous cultivation of a crop throughout a season by successive plantings or by the use of varieties with different rates of growth.
- sulphonium compound — any one of a class of salts derived by the addition of a proton to the sulphur atom of a thiol or thio-ether thus producing a positive ion (sulphonium ion)
- tehachapi mountains — a transverse (E–W) mountain range in S central California. Highest peak, Double Mountain, 7982 feet (2433 meters).
- the compassion club — (in Canada) a nonprofit organization that provides uncontaminated cannabis for medical purposes and natural therapies in a safe environment
- therapeutic cloning — the permitted creation of cloned human tissues for surgical transplant
- triple counterpoint — invertible counterpoint involving three transposable voices.
- trooping the colour — a military ceremony, performed by regiments of the British army and the Commonwealth, in which the regimental colour or flag is marched past ranks of troops
- trumpet honeysuckle — an American honeysuckle, Lonicera sempervirens, having spikes of large, tubular flowers, deep-red outside and yellow within.
- trusteeship council — a United Nations body that supervises the government of a territory by a foreign country
- under police escort — If you go somewhere or are taken somewhere under police escort, you go there accompanied by a police escort.
- up to one's neck in — deeply involved in
- upper carboniferous — Pennsylvanian (defs 2, 4).
- vapor recovery unit — A vapor recovery unit is a system for recovering vapors from inside sealed crude oil or condensate tanks, with a scrubber (= a device for removing unwanted substances) and compressor (= a device that raises pressure).