We found 4 dictionaries that define the word trans neptunian object:

General (3 matching dictionaries)

1. trans-Neptunian object: Wiktionary
2. Trans-Neptunian Object, Trans-Neptunian object: Wikipedia, the Free Encyclopedia
3. trans-Neptunian object: TheFreeDictionary.com

Science (1 matching dictionary)

4. TRANS NEPTUNIAN OBJECT: Zoom Astronomy Glossary

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