subunit

noun

streaming protocol for test results

Wiktionary

Pronunciation: /sʌbˈjuːnɪt/

noun

Etymology: Etymology tree Proto-Indo-European *upó Proto-Italic *supo Latin sub Latin sub-der. English sub- English unit English subunit From sub- + unit.

Any subdivision of a larger unit.
“The bogies are built up of welded sub-units which are stress-relieved before assembly by riveting.”
“Interchange manipulation comparisons showed that all subunits are still active, if at slightly lower rates.”
A protein subunit.