Peptide (noun)

A molecule consisting of two or more amino acids bonded together by peptide bonds.

Origin:

From french peptide, from latin peptīdum, from ancient greek πεπτιδίς (peptidís, "digestion"), from πέσσειν (péssein, "to digest").

Examples:

1. Insulin is a peptide hormone that regulates glucose metabolism.
2. Peptides are the building blocks of proteins.
3. The research team is studying the effect of various peptides on cell growth.
4. Peptides can be synthesized chemically or through the action of enzymes.
5. The discovery of new peptides could lead to new treatments for various diseases.