11-letter words containing s, e, x
- unfixedness — the state of being unfixed
- upper sixth — (in England, Wales and Northern Ireland) the final year of sixth form
- west sussex — a county in SE England. 778 sq. mi. (2015 sq. km).
- witness box — witness stand.
- witness-box — witness stand.
- x-stretcher — a stretcher having the form of an X .
- xenoblastic — a crystal that forms in metamorphic rock and gets its outline from neighboring crystals.
- xenogenesis — heterogenesis (def 1).
- xenoglossia — an ability claimed by some mediums, clairvoyants, etc, to speak a language with which they are unfamiliar
- xenoplastic — involving distantly related individuals
- xeriscaping — environmental design of residential and park land using various methods for minimizing the need for water use.
- xerophilous — Botany. growing in or adapted to dry, especially dry and hot, regions.
- xerophytism — (botany) The adaptation of plants to habitats where water is scarce.
- xerotripsis — dry friction, attrition, or abrasion
- xiphisterna — Plural form of xiphisternum.
- xyridaceous — (of a plant) pertaining to or belonging to the order Xyrideae
- zx spectrum — (computer) Sinclair's first personal computer with a colour display. The Spectrum used the Zilog Z80 processor like its predecessors the ZX-80 and ZX-81. It was originally available in 16k and 48k versions using cassette tape and later grew to 128k and sprouted floppy disks. It had a wider and more solid case and a marginally better "dead flesh" keyboard. Unlike the earlier models, it didn't require the presence of a cold carton of milk to prevent it overheating. It was possibly the most popular home computer in the UK for many years. The TK-90X was a clone.