retrograde motion
retrograde motion · retrograde motions
Motion of a body in a direction opposite to that of its normal motion, or to that of…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
» The readiest support for planets' having confocal orbits is their sometimes retrograde motion.
Meaning
1 senses(countable, uncountable)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
Examples
1 sentencesThe readiest support for planets' having confocal orbits is their sometimes retrograde motion.
Forms
plural: retrograde motions| Singular | retrograde motion |
|---|---|
| Plural | retrograde motions |
regular
Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable