partialoperation

noun
UK /ˈpɑː.ʃəl ˌɒp.əˈreɪ.ʃən/
US /ˈpɑːr.ʃəl ˌɑː.pəˈreɪ.ʃən/

A partial operation is a math rule that only works for some pairs of numbers, not all of them.

Subtraction is a partial operation on whole numbers because 3 minus 5 has no whole-number answer.


OTHER MEANINGS

2. A job or task that is only partly finished.

The bridge was a partial operation, so only one lane was open.

3. A medical procedure that treats only part of a problem.

The doctors performed a partial operation to remove the growth.

4. A business or machine that works only some of the time.

The factory ran as a partial operation during the repairs.