functionalside
nounUK /ˈfʌŋkʃənəl saɪd/
US /ˈfʌŋkʃənəl saɪd/
The part of something that does the actual job.
The functionalside of the toy is the button that makes it move.
OTHER MEANINGS
2. The practical part of a design, not the pretty part.
The functionalside of the chair is its strong legs.
3. The side of a machine that makes it work.
He opened the functionalside of the robot to check the gears.
4. The useful job a thing does.
The functionalside of a pencil is writing.