substitution definition - Dictionary

Dictionary

sub·sti·tu·tion [ sùbstə tsh'n ] (plural sub·sti·tu·tions)

noun

Definition:

1. act of replacing: the replacement of somebody or something with another, especially one team member with another on the field

2. somebody or something that replaces: somebody or something that replaces another, especially one team member who replaces another on the field

3. mathematics replacement of mathematical element: the replacement of one mathematical element with another of equal value

4. logic replacement of logical expression: the replacement of one logical expression with another, or a replaced logical expression

sub·sti·tu·tion·al adjective

sub·sti·tu·tion·al·ly adverb