osiris-rex

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Proper noun

1. {{lb|en|astronomy|NASA}} {{initialism of|en|[[origin|Origins]], [[spectral|Spectral]] [[interpretation|Interpretation]], [[resource|Resource]] [[identification|Identification]], [[security|Security]]-[[regolith|Regolith]] [[explorer|Explorer]]|addl=a NASA asteroid-study and sample-return mission}}.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.