protein
nounfemininetécnico/pɾuˈtɐjnɐ/high
pro·te·i·na
Definition
A macromolecule composed of amino acids, essential for life.
Meat is rich in protein.
Proteins are necessary for muscle growth.
Common collocations
animal proteinplant proteinprotein supplement
Etymology
Do francês 'protéine', do grego 'protos' (primeiro).