pushdown
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English[edit]
Etymology[edit]
push + down; by analogy with a spring-loaded stack of plates in a cafeteria.
Adjective[edit]
pushdown (not comparable)
- (computing) Describing a stack in which items are removed in a LIFO manner from the end at which they were added.
Noun[edit]
pushdown (plural pushdowns)
- A pushdown automaton.
- 2003, Wilfried Brauer, Hartmut Ehrig, Juhani Karhumäki, Formal and Natural Computing: Essays:
- Since indexed grammars are context-free grammars with pushdowns, the generalization of Thatcher's result shows that they generate the yields of the tree languages recognized by deterministic pushdown tree automata.