- critical manifold
- critical metric
- critical ordinal number
- critical pair
- critical parameter
- critical path
- critical path algorithm
- critical path analysis
- critical path method
- critical path scheduling
- critical percolation probability
- critical phenomenon
- critical point
- critical point of a function
- critical point of a mapping
- critical point theory
- critical probability
- critical problem
- critical process
- critical quotient
- critical region
- critical set
- critical speed
- critical strip
- critical subgraph