Definition of pushdown:
(adj) :
(computing) Describing a stack in which items are removed in a LIFO manner from the end at which they were added.
(n) :
(computing) The relegation of the transformation or processing of data to the originating datasource.
(n) :
(bodybuilding) An exercise that requires one to push weight downward.
(n) :
(countable) A pushdown automaton.
(adj) :
Used by being pushed down.