フェニルアラニンふぇにるあらにんFreq.FrequencyTop 100,000Meanings1nounphenylalaninechemistryAn essential amino acid; used in biochemistry and nutrition contexts.フェニルアラニンは必ひっ須すアミノ酸さんの一ひとつです。Phenylalanine is one of the essential amino acids.