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Wiktionary
aminoisobutyric acid

n. (context organic compound English) Either of two isomeric amino acids that occur only in some fungal peptides

Wikipedia
Aminoisobutyric acid

Aminoisobutyric acid may refer to either of two isomeric chemical compounds:

  • 2-Aminoisobutyric acid
  • 3-Aminoisobutyric acid