| acide nitrique | nitric acid |
| Acide nucléique | Nucleic acid |
| acide nucléïque | nucleic acid |
| acide palmique | ricinoleic acid |
| Acide paratoluènesulfonique | P-Toluenesulfonic acid |
| Acide peracétique | Peracetic acid |
| Acide permanganique | Manganese oxide |
| Acide phosphorique | Phosphoric acid |
| Acide phytique | Phytic acid |
| Acide polylactique | Polylactic acid |
| acide prussique | prussic acid |
| acide ribonucléique | RNA |
| Acide ribonucléique messager | Messenger RNA |
| Acide ribonucléique ribosomique | Ribosomal RNA |
| Acide résinique | Resin acid |
| acide salicylique | salicylic acid |
| Acide stéatique | Fatty acid |
| acide sulfureux | sulfurous acid |
| acide sulfurique | vitriol |
| acide tannique | tannic acid |
| acide tartrique | tartaric acid |
| Acide teichoïque | Teichoic acid |
| Acide trifluoroacétique | Trifluoroacetic acid |
| Acide trifluorométhanesulfonique | Trifluoromethanesulfonic acid |
| acide urique | uric acid |
| Acide uronique | Uronic acid |
| acide valérique | valeric acid |
| Acide α-linolénique | Alpha-linolenic acid |
| Acide γ-linolénique | Gamma-Linolenic acid |
| Acide-aminé | Amino acid |
| acidifiable | acidifiable |
| acidification | acidification |
| Acidification de l’océan | Ocean acidification |
| acidifier | acidify |
| acidimétrie | acidimetry |
| acidité | acidity |
| Acidogénèse | Acidogenesis |
| Acidophile | Acodophilous |
| acidose | acidosis |
| Acidose tubulaire rénale | Renal tubular acidosis |
| aciduler | acidulate |
| acidulé | biting |
