11-letter words containing s, e, x, i
- unexclusive — not exclusive; able to be accessed by all
- unexercised — not exercised; not practised; not used
- unfixedness — the state of being unfixed
- upper sixth — (in England, Wales and Northern Ireland) the final year of sixth form
- witness box — witness stand.
- witness-box — witness stand.
- 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