15-letter words containing a, n, g, r, b
- tumbling barrel — a rotating drum for subjecting materials or small manufactured objects, loosely placed inside, to a tumbling action, as to mix materials or to polish objects by friction with one another or with an abrasive.
- uncategorizable — not able to be categorized or placed into a category
- uncopyrightable — not able to be copyrighted
- uranium-bearing — containing or producing uranium
- urban guerrilla — a member of any underground political group engaged in terrorism or violence in urban areas, especially during the 1970s.
- urban migration — the process of people moving from rural areas to cities
- urban sociology — the sociological study of cities and their role in the development of society.
- variable region — a configuration in the upper branches of the Y of an antibody molecule, unique in each antibody type, that binds with the determinant of a specific antigen.
- wage bargaining — discussions between representatives of employees and employers in order to agree levels of pay
- weatherboarding — an early type of board used as a siding for a building.