16-letter words containing m, a, o, n, i
- unmarried mother — a woman who has a baby while she is not married
- uranium trioxide — a radioactive orange powder, UO 3 , used in the manufacture of some ceramics.
- vapor combustion — Vapor combustion is a closed burn system used for treating liquid waste which contains volatile organic compounds.
- video journalism — the techniques, methods, etc., of preparing and broadcasting informational, social, political, and other nonfiction subjects via news and documentary programs.
- warminster broom — a European shrub, Cytisus praecox, of the legume family, having yellowish-white or yellow, pealike flowers.
- william hamilton — (person) A mathematician who posed Hamilton's problem.
- willow ptarmigan — a ptarmigan, Lagopus lagopus, of arctic and subarctic regions of the New and Old Worlds, having brown, mottled plumage in summer and white plumage in winter.
- windowless monad — (in the philosophy of Leibniz) a monad having no direct causal or perceptual relation with any other monad.
- withdrawing room — a room to withdraw or retire to; drawing room.
- woolly manzanita — a tree or shrub, Arctostaphylos tomentosa, of the heath family, common from British Columbia to California, having broad leaves, with the underside covered with white hairs, and white flowers.
- yeoman's service — good, useful, or workmanlike service: His trusty sword did him yeoman's service.
- zagros mountains — a mountain range in S Iran: has Iran's main oilfields in its W central foothills. Highest peak: Zard Kuh, 4548 m (14 920 ft)
- zygosporangium's — a sporangium that bears a zygospore.