self-motion

English

Etymology

From self- +‎ motion.

Noun

self-motion (countable and uncountable, plural self-motions)

1. Motion given by inherent powers, without external impulse.

References

• Ogilvie, John. The Imperial Dictionary of the English Language: A Complete Encyclopedic Lexicon, Literary, Scientific, and Technological. Blackie & Son. (1884).