12-letter words containing x, a, n
- unexplorable — to traverse or range over (a region, area, etc.) for the purpose of discovery: to explore the island.
- unexpurgated — to amend by removing words, passages, etc., deemed offensive or objectionable: Most children read an expurgated version of Grimms' fairy tales.
- unextenuated — not extenuated
- unisexuality — of or relating to one sex only.
- unoxygenated — not enriched with oxygen
- uranic oxide — uranium dioxide.
- vax document — A document preparation system from DEC.
- vox angelica — an organ stop with a soft tone, often similar to the voix céleste
- wax and wane — moon: go through phases
- waxed cotton — cotton that is treated with wax to make it waterproof
- windfall tax — a tax levied on an organization considered to have made excessive profits, esp a privatized utility company that has exploited a monopoly
- x-ray binary — a binary star that is an intense source of X-rays and is composed of a normal star in close orbit with a white dwarf, neutron star, or black hole
- xanthene dye — any of a group of dyes having a molecular structure related to that of xanthene in which the aromatic (C 6 H 4) groups are the chromophore.
- xanthic acid — an unstable organic acid, C 3 H 6 S 2 O, the methyl and ethyl esters of which are colorless, oily liquids with a penetrating odor.
- xanthochroia — a condition causing yellow patches on the skin similar to xanthoma
- xanthochroid — of, relating to, or designating races having light-coloured hair and a pale complexion
- xanthogenate — Xanthate.
- xanthomatous — of, relating to, or marked by xanthoma
- xanthopterin — a yellow pigment, C6H5N5O2, found in some butterfly or moth wings or in the urine of mammals
- xenoreactive — (immunology) That generates a reaction to material from another species.
- zooxanthella — any of various symbiotic yellow-green or yellow–brown algae in the cytoplasm of certain radiolarians and marine invertebrates.