Portuguese

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Etymology

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From anti- +‎ duna.

Pronunciation

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

Noun

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antiduna f (plural antidunas)

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