Definition of acid reflux in English:

acid reflux

Syllabification: ac·id re·flux

Entry from US English dictionary

noun

A condition in which acidic gastric fluid is regurgitated into the esophagus, causing heartburn.

Definition of acid reflux in:

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Word of the day neoteny
Pronunciation: niːˈɒt(ə)ni
noun
retention of juvenile features in the adult animal