9-letter words containing a, t, n, s, o
- unroasted — not roasted or cooked over dry heat
- vasotocin — a chemical similar to oxytocin found in birds, fish, and some amphibians
- vasotonic — pertaining to or regulating the tone of the blood vessels.
- volcanist — a person who studies volcanoes
- wainscots — Plural form of wainscot.
- watterson — Henry ("Marse Henry") 1840–1921, U.S. journalist and political leader.
- waypoints — Plural form of waypoint.
- wollaston — William Hyde, 1766–1828, English chemist and physicist.
- xanthomas — Plural form of xanthoma.
- xanthones — Plural form of xanthone.
- xanthosis — (pathology) A yellowish discolouration of tissues undergoing degeneration.
- xenoblast — a crystal that forms in metamorphic rock and gets its outline from neighboring crystals.
- zákinthos — one of the southernmost islands of the Ionian Islands, Greece: 155 sq mi (401 sq km)
- zakynthos — Greek name of Zante.