Portuguese edit

Etymology edit

From anti- +‎ duna.

Pronunciation edit

 
  • (Brazil) IPA(key): /ˌɐ̃.t͡ʃiˈdũ.nɐ/
    • (Southern Brazil) IPA(key): /ˌɐ̃.t͡ʃiˈdu.na/

Noun edit

antiduna f (plural antidunas)

  1. (geomorphology) antidune (a bedform opposing the direction of fluvial flow)