noun🔗ShareCatecolaminaAny of a class of aromatic amines derived from pyrocatechol that are hormones produced by the adrenal gland."During a stressful exam, the student's adrenal gland released catecholamine, causing her heart to race and her palms to sweat. "Durante un examen estresante, la glándula suprarrenal de la estudiante liberó catecolamina, lo que provocó que su corazón se acelerara y le sudaran las palmas de las manos.medicinephysiologybiochemistrybodysubstancechemistrybiologyscienceanatomyorganChat with AIVocabulary GamePractice Reading