littleunit
nounUK /ˈlɪtəl ˈjuːnɪt/
US /ˈlɪtəl ˈjuːnɪt/
A little unit is a small thing that is one part of a bigger group.
Each little unit in the toy robot can snap onto the next one.
OTHER MEANINGS
2. A small group of soldiers or workers that acts together.
A little unit of helpers cleaned the whole park.
3. A small machine or device that does one job.
This little unit keeps the room warm.
4. A small amount used for measuring.
A centimeter is a little unit of length.