[ uhp-kast, -kahst ]
See synonyms for upcast on Thesaurus.com
  1. an act of casting upward.

  2. the state of being cast upward.

  1. something that is cast or thrown up, as soil or earth in digging.

  2. a shaft or passage up which air passes, as from a mine (opposed to downcast).

  1. cast up; directed or thrown upward: The child looked at her father with upcast eyes.

verb (used with object),up·cast, up·cast·ing.
  1. to cast up or upward.

Origin of upcast

1300–50; Middle English upcasten (v.). See up-, cast

Words Nearby upcast

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use upcast in a sentence

  • I should require to know the temperature of the shafts respectively, and the height of the upcast shaft.

    Facing Death | G. A. Henty
  • The upcast reflection of a lamp and shade, an inconstant series of concentric circles of varying gradations of light and shadow.

    Ulysses | James Joyce
  • The fire should be kept as thin and bright as possible, to reduce the amount of smoke in the upcast.

  • Hideous under the pale rays lay the two dead men, their glazed eyes upcast to the peace of the blue heavens.

  • As soon as this cry was upcast, to the hall came clerks out of Chaldea, witches and diviners, sorcerers and exorcists.

British Dictionary definitions for upcast


/ (ˈʌpˌkɑːst) /

  1. material cast or thrown up

  2. a ventilation shaft through which air leaves a mine: Compare downcast (def. 3)

  1. geology (in a fault) the section of strata that has been displaced upwards

  1. directed or thrown upwards

verb-casts, -casting or -cast
  1. (tr) to throw or cast up

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012