13-letter words containing s, i, m, o
- vivisectorium — the location where vivisection takes place
- vocationalism — the practice or policy of requiring vocational training of all college or high-school students.
- w3 consortium — World Wide Web Consortium
- wearisomeness — causing weariness; fatiguing: a difficult and wearisome march.
- west bromwich — a city in West Midlands, in central England, near Birmingham.
- west columbia — a town in central South Carolina.
- whoremistress — a female owner or keeper of a brothel
- winston-salem — a city in N North Carolina.
- wireless room — a room on a premises, on a ship, etc where radio equipment is installed
- wishbone boom — a boom on a sailboard having two arms that are joined at the mast and at the foot of the sail. The windsurfer holds onto it for support and to steer the sailboard
- words fail me — I am too happy, sad, amazed, etc, to express my thoughts
- worrisomeness — The property of being worrisome.
- xanthochroism — a condition in certain animals, esp aquarium goldfish, in which all skin pigments other than yellow and orange disappear
- yestermorning — yesterday morning.
- zero-emission — A zero-emission vehicle does not produce any dangerous gases.
- zoomastigotes — Plural form of zoomastigote.
- zoosporangium — a sporangium or spore case in which zoospores are produced.