WordReference Random House Unabridged Dictionary of American English © 2025
sem•i•au•ton•o•mous
(sem′ē ô ton′ə məs, sem′ī-),USA pronunciation adj.
- Governmentpartially self-governing, esp. with reference to internal affairs.
- semi- + autonomous 1900–05
'semiautonomous' also found in these entries (note: many are not synonyms or translations):