Word: upcast
Part of speech: Noun
Syllables: up
cast
Definition: The ventilating shaft of a mine out of which the air passes after having circulated through the mine.
Morphemes:
Affix: up-
Language: en
PoS: Prefix
Meaning: Used to indicate higher position or direction, literally or figuratively.
Affix: cast
Language: en
PoS: Noun
Meaning: Something which has been thrown, dispersed etc.