Word.ws English Dictionary

TNO

TNO is the initialism of trans-Neptunian object.

Meaning of trans-Neptunian object

Noun

trans-Neptunian object (plural trans-Neptunian objects, abbreviation TNO)

  1. Any natural object (usually a minor planet (asteroid) or a hypothetical planet) in the Solar System with all or most of its orbit outside the orbit of Neptune.

Forms of TNO

pluralTNOs

Questions about TNO

What is TNO the initialism of?
TNO is the initialism of trans-Neptunian object.

Words near TNO in the dictionary

  1. tnge.
  2. TNGs
  3. tnks
  4. TNLN
  5. TNN
  6. TNO
  7. TNOs
  8. tnoyim
  9. tnpk
  10. tnpks
  11. TNPL

Source and license

Adapted from Wiktionary: TNO (page history and authors); trans-Neptunian object (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: “TNO.” Word.ws, https://word.ws/tno. Based on Wiktionary, CC BY-SA 4.0.