15-letter words containing b, r, o, i
- voltaic battery — battery (def 1a).
- weatherboarding — an early type of board used as a siding for a building.
- wheelchairbound — Confined to a wheelchair.
- winesburg, ohio — a cycle of short stories (1919) by Sherwood Anderson.
- ytterbium oxide — a colorless compound, Yb 2 O 3 , used in certain alloys and ceramics.