15-letter words containing m, o, n, a
- twist one's arm — to combine, as two or more strands or threads, by winding together; intertwine.
- two-dimensional — having the dimensions of height and width only: a two-dimensional surface.
- uinta mountains — a mountain range in NE Utah: part of the Rocky Mountains. Highest peak: Kings Peak, 4123 m (13 528 ft)
- ultra-modernist — very advanced in ideas, design, or techniques.
- ultramarathoner — a person who takes part in an ultramarathon
- un-come-at-able — not accessible
- un-romanticized — to make romantic; invest with a romantic character: Many people romanticize the role of an editor.
- unaccommodating — easy to deal with; eager to help or please; obliging.
- uncommunicating — to impart knowledge of; make known: to communicate information; to communicate one's happiness.
- uncommunicative — not inclined to talk or disclose information; reserved; taciturn.
- uncompanionable — not companionable or friendly; antisocial
- uncompassionate — having or showing compassion: a compassionate person; a compassionate letter.
- uncomplainingly — in an unresentful or resigned manner
- uncomplaisantly — in an uncomplaisant manner
- uncomplementary — forming a complement; completing.
- uncomplimentary — of the nature of, conveying, or expressing a compliment, often one that is politely flattering: a complimentary remark.
- uncompromisable — that cannot or should not be compromised
- undemonstrative — not given to open exhibition or expression of emotion, especially of affection.
- undercompensate — to compensate or pay less than is fair, customary, or expected.
- underestimation — to estimate at too low a value, rate, or the like.
- unearned income — income received from property, as interest, dividends, or the like.
- unidiomatically — in a way that is not idiomatic
- uninformatively — in an uninformative manner
- universal motor — a series-wound motor, of one-half horsepower or less, using alternating or direct current.
- unrecommendable — not able to be recommended, supported, or endorsed
- unsanctimonious — Obsolete. holy; sacred.
- unsportsmanlike — a man who engages in sports, especially in some open-air sport, as hunting, fishing, racing, etc.
- upperclasswoman — An upperclasswoman is a junior or senior student in a high school, college, or university.
- uranium dioxide — a black, crystalline compound, UO 2 , insoluble in water, used in nuclear fuel rods, in ceramics, and pigments.
- urban migration — the process of people moving from rural areas to cities
- usman dan fodio — 1754–1817, African mystic and revolutionary leader, who created a Muslim state in Nigeria
- ust-kamenogorsk — a city in E Kazakhstan, on the Irtysh River.
- utility company — a company which supplies utilities, such as gas, electricity, phones, etc
- vacuum concrete — concrete from which excess moisture and air are sucked to quicken hardening and increase strength.
- vernier compass — a compass on a transit (vernier transit) having a vernier for adjusting magnetic bearings to read as true bearings.
- victor emmanuel — 1869–1947, king of Italy 1900–46.
- video on demand — (communications) (VoD) A planned system using video compression to supply programs to viewers when requested, via ISDN or cable.
- voronoi diagram — (mathematics, graphics) (Or "Voronoi tessellation", "Voronoi decomposition", "Dirichlet tessellation", After Georgy Feodosevich Voronoy) For a set S of points in a Euclidean space, the partition Vor(S) of the plane into the voronoi polygons associated with the members of S, where each polygon is defined by the set of points nearer to some given point in S than to any other point in S. The Voronoi diagram is the dual of the Delaunay triangulation of S.
- waddesdon manor — a mansion near Aylesbury in Buckinghamshire: built (1880–89) in the French style for the Rothschild family: noted for its furnishings and collections of porcelain and paintings
- washington palm — a palm tree, Washingtonia filifera, of California and Florida, having large fan-shaped leaves and small black fruits
- white mountains — a mountain range in the US, chiefly in N New Hampshire: part of the Appalachians. Highest peak: Mount Washington, 1917 m (6288 ft)
- wreathed column — a column having a twisted or spiral form.
- x-ray astronomy — the branch of astronomy that studies celestial objects by means of the x-rays emitted by them.
- yellow mandarin — (in the Chinese Empire) a member of any of the nine ranks of public officials, each distinguished by a particular kind of button worn on the cap.