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.
Full Definition of PETRIFY. transitive verb. 1. : to convert (organic matter) into stone or a substance of stony hardness by the infiltration of water and the deposition of dissolved mineral matter.2.: to make rigid or inert like stone: intransitive verb.: to become stone or of stony hardness or rigidity.ull Definition of PETRIFY. transitive verb. 1. : to convert (organic matter) into stone or a substance of stony hardness by the infiltration of water and the deposition of dissolved mineral matter. 2. : to make rigid or inert like stone: intransitive verb. : to become stone or of stony hardness or rigidity.