Word.ws English Dictionary

proper motion

proper motion noun: the change in apparent position of a celestial body due to that body's velocity relative to the Sun.

Noun

proper motion (plural proper motions)

  1. The change in apparent position of a celestial body due to that body's velocity relative to the Sun.

proper motion meaning in Tamil

proper motion in Tamil

சீரான இயக்கம்

Forms of proper motion

pluralproper motions

Origin of proper motion

proper (in the sense of "its own") + motion; from Latin proprius.

Questions about proper motion

What does proper motion mean?
Proper motion means the change in apparent position of a celestial body due to that body's velocity relative to the Sun.
What is proper motion in Tamil?
Proper motion in Tamil is சீரான இயக்கம். See Proper motion meaning in Tamil.
What part of speech is proper motion?
Proper motion is a noun.
What is the plural of proper motion?
The plural of proper motion is proper motions.

Words near proper motion in the dictionary

  1. proper fractions
  2. proper inclusion
  3. proper job
  4. proper jobs
  5. proper left
  6. proper motion
  7. proper motions
  8. proper name
  9. proper names
  10. Proper Nangalisan
  11. proper noun

Source and license

Adapted from Wiktionary: proper motion (page history and authors); proper motion (Tamil Wiktionary) (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “proper motion.” Word.ws, https://word.ws/proper_motion. Based on Wiktionary, CC BY-SA 4.0.