WordReference Random House Unabridged Dictionary of American English © 2026
un•der•cast
(un′dər kast′, -käst′),USA pronunciation n.
- Mininga crossing of two passages, as airways, dug at the same level so that one descends to pass beneath the other without any opening into it. Cf. overcast (def. 9).
- Meteorologyan overcast layer of clouds viewed from above.
- under- + cast 1880–85
'undercast' also found in these entries (note: many are not synonyms or translations):