13-letter words containing o, l, g, i, s
- victimologist — the study of crime victims and the psychological effects of being a victim.
- virgo cluster — a cluster of about 2500 galaxies in the constellation Virgo, the nearest cluster to our galaxy.
- volcanologist — the scientific study of volcanoes and volcanic phenomena.
- volute spring — a coil spring, conical in shape, extending in the direction of the axis of the coil.
- wages council — (formerly, in Britain) a statutory body empowered to fix minimum wages in an industry; abolished in 1994
- wagon soldier — a field-artillery soldier.
- walking horse — Tennessee walking horse.
- wallcoverings — Plural form of wallcovering.
- wellingtonias — Plural form of wellingtonia.
- whitlow grass — any of various plants of the genera Draba and Erophila, once thought to cure whitlows: family Brassicaceae (crucifers)
- willing horse — a person prepared to work hard
- willow grouse — a N European grouse, Lagopus lagopus, with a reddish-brown plumage and white wings: now regarded as the same species as the red grouse (L. lagopus scoticus) of Britain
- wool classing — the grading and grouping together of similar types of wool
- working class — those persons working for wages, especially in manual labor.
- world-shaking — of sufficient size or importance to affect the entire world: the world-shaking effects of an international clash.
- zoophysiology — the physiology of animals as opposed to humans