12-letter words containing n, o, e, x, p
- polysiloxane — a polymer composed of silicon and oxygen atoms
- pony express — a former system in the American West of carrying mail and express by relays of riders mounted on ponies, especially the system operating (1860–61) between St. Joseph, Missouri, and Sacramento, California.
- praxinoscope — a toy in which a sequence of images, depicted on the inner surface of a cylinder and reflected in a series of mirrors, gives the illusion of motion as the cylinder rotates
- propoxyphene — Pharmacology. a nonnarcotic analgesic, C 2 2 H 2 9 NO 2 .
- protosynthex — A query system for English text.
- pyridoxamine — a metabolic form of pyridoxine
- sulphadoxine — an antibiotic drug of the sulphonamide group, commonly used in combination with pyrimethamine to treat malaria, and in combination with various drugs to treat certain infections
- underexploit — to make insufficient use of
- underexposed — If a photograph is underexposed, it is darker than it should be because the film was not exposed to enough light.
- unexplorable — to traverse or range over (a region, area, etc.) for the purpose of discovery: to explore the island.
- xanthopterin — a yellow pigment, C6H5N5O2, found in some butterfly or moth wings or in the urine of mammals