Etymology: L, vas + constrigere, to tighten. a decrease in the diameter of a blood vessel. It plays an important role in the control of blood pressure and the distribution of blood throughout the body. Vasoconstriction is triggered by stimulation of the vasomotor constriction center in the medulla.
Wiktionary(0.00 / 0 votes)Rate this definition: 1  typify(Verb) To embody, exemplify; to represent by an image, form, model, or resemblance. 2  typify(Verb) To portray stereotypically. 3  typify(Verb) To serve as a typical or reference specimen.
Verb. 1. certify-provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes; His high fever attested to his illness; The buildings in Rome manifest a high level of architectural sophistication; This decision demonstrates his sense of fairness.