restrictedmapping

noun
UK /rɪˈstrɪktɪd ˈmæpɪŋ/
US /rɪˈstrɪktɪd ˈmæpɪŋ/

A restricted mapping is a rule that only lets certain things match up with certain other things.

The game used a restricted mapping so each key could open only one door.


OTHER MEANINGS

2. In math, a mapping defined only on part of a set rather than the whole set.

The teacher explained that a restricted mapping skips some numbers in the domain.

3. In computing, a table that allows only approved values to be translated into other values.

The program used a restricted mapping to block unsafe characters.

4. A connection between two groups that is allowed only under special conditions.

The two clubs made a restricted mapping of which members could visit each other.