13-letter words containing a, x, i, s, o
- sex chromatin — Barr body.
- sex education — Sex education is education in schools on the subject of sexual activity and sexual relationships.
- sexploitation — the exploitation of sex in films, magazines, etc.
- sexualization — to render sexual; endow with sexual characteristics.
- shadow boxing — to make the motions of attack and defense, as in boxing, as a training or conditioning procedure.
- soixante-neuf — sixty-nine (def 4).
- spermatotoxic — spermotoxic.
- spermatotoxin — spermotoxin.
- stannic oxide — a white, amorphous, water-insoluble powder, SnO 2 , used chiefly in the manufacture of ceramic glazes and glass, and of polishing powders for metal, glass, and marble.
- storax family — the plant family Styracaceae, characterized by trees and shrubs having simple, alternate leaves, clusters of bell-shaped white flowers, and fleshy or dry fruit, and including the silver bell, snowbell, and storax.
- sulfisoxazole — a white to yellowish, crystalline, slightly bitter sulfonamide, C 1 1 H 1 3 N 3 O 3 S, used chiefly in the treatment of infections of the urinary tract.
- tax inspector — a government official whose job is to make sure that people and companies are paying the right amount of tax
- toxicophagous — poison-eating
- 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.
- visitor's tax — a tax that visitors to a place must pay
- visual cortex — the portion of the cerebral cortex of the brain that receives and processes impulses from the optic nerves.
- visual foxpro — (database) A Microsoft database derived from Fox Software's FoxPRO.
- xanthochroism — a condition in certain animals, esp aquarium goldfish, in which all skin pigments other than yellow and orange disappear
- xenodiagnosis — a method of diagnosing certain diseases caused by insects, ticks, or other vectors, by allowing uninfected vectors to feed on the patient and later examining them for infections.
- xiphiplastron — the fourth lateral plate of a turtle's plastron
- zoopraxiscope — an early type of motion-picture projector, designed by Eadweard Muybridge, in which the images were drawings or photographs placed along the rim of a circular glass plate, the shutter was a rotating opaque disk with radial slots, and a limelight source was used.