Translingual Symbol MDV (international standards) ISO 3166-1 alpha-3 country code for the Maldives. Synonym: MV (alpha-2) English Noun MDV (plural MDVs) (space flight) Initialism of Mars descent vehicle. Antonyms (antonym(s) of “Mars ascent vehicle”): MAV (Mars ascent vehicle) Related terms (Mars ascent vehicle): MTV (Mars transfer vehicle / Mars transit vehicle) See also (Mars ascent vehicle): LEM (lunar excursion module) LM (lunar module) Anagrams DMV, DVM, VDM, VMDWikiwand - on Seamless Wikipedia browsing. On steroids.