Word of the Day — April 22, 2026
peptide
/pe-PTID-e/nounPush me
Definition
A tiny protein-building block made when amino acids link together like chain links.
amide combining the amino group of one amino acid with the carboxyl group of another
Memory Hook
PEP-TIDE: Think of amino acids doing the PEP talk before bonding together in a chain, creating a TIDE of linked molecules.