17-letter words containing a, p, o, h, y, s
- shuttle diplomacy — diplomatic negotiations carried out by a mediator who travels back and forth between the negotiating parties.
- social psychology — the psychological study of social behavior, especially of the reciprocal influence of the individual and the group with which the individual interacts.
- south sea company — a British joint stock company that traded in South America in the 18th century. The South Sea Company took over the national debt in return for a monopoly of trade with the South Seas, causing feverish speculation in their stocks, and a financial crash in 1720 (the South Sea Bubble)
- spark photography — photography of fast-moving objects, as bullets, by the light of an electric spark.
- spherical polygon — a closed figure formed by arcs of great circles on a spherical surface.
- spiny-headed worm — any of a small group of endoparasites of the phylum Acanthocephala, as larvae parasitic in insects and crustaceans and as adults in various vertebrates.
- spongy parenchyma — the lower layer of the ground tissue of a leaf, characteristically containing irregularly shaped cells with relatively few chloroplasts and large intercellular spaces.
- steamship company — a company which has a fleet of steamships
- stereolithography — a process for creating three-dimensional objects using a computer-controlled laser to build up the required structure, layer by layer, from a liquid photopolymer that solidifies.
- stereophotography — photography producing stereoscopic images.
- the lord's prayer — the, the prayer given by Jesus to His disciples, and beginning with the words Our Father. Matt. 6:9–13; Luke 11:2–4.