Meaning of retrograde motion | Babel Free
Definitions
Motion of a body (either real or apparent) in a direction opposite to that of its normal motion, or to that of other similar or related bodies
countable, uncountable
CEFR level
B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
This word is part of the CEFR B2 vocabulary — upper intermediate level.