Meaning of OSIRIS-REx | Babel Free
Definitions
Initialism of Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer, a NASA asteroid-study and sample-return mission.
abbreviation, alt-of, initialism
CEFR level
B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
This word is part of the CEFR B2 vocabulary — upper intermediate level.