Definitions

1. noun

A peptide, a short chain of amino acids, that is a potent vasodilator, causing the blood vessels to dilate.

“The researchers found that kallidin played a significant role in regulating blood pressure.”

2. noun

A type of kinin, a family of peptides that are involved in various physiological processes.

“The study on kallidin’s role in inflammation highlighted the importance of kinins in the immune system.”