- apprehension; understanding or comprehension; mental grasp: quick on the uptake.
- an act or instance of taking up; a lifting: the uptake of fertilizer by machines.
- a pipe or passage leading upward from below, as for conducting smoke or a current of air.
- absorption.
- a pipe, shaft, etc, that is used to convey smoke or gases, esp one that connects a furnace to a chimney
- mining another term for upcast (def. 2)
- taking up or lifting up
- the act of accepting or taking up something on offer or available
- quick to understand or learn
- slow to understand or learn
