Definition of phenylalanine
: an essential amino acid C9H11NO2 that is converted in the normal body to tyrosine
Recent Examples of phenylalanine from the Web
Aspartame does break down into methanol and phenylalanine.
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Origin and Etymology of phenylalanine
International Scientific Vocabulary
First Known Use: circa 1883See Words from the same year
Medical Definition of phenylalanine
Learn More about phenylalanine
Britannica.com: Encyclopedia article about phenylalanine
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