vasodilator

vasodilator
n.
a drug that causes widening of the blood vessels and therefore an increase in blood flow. Vasodilators are used to lower blood pressure in cases of hypertension. Coronary vasodilators, such as glyceryl trinitrate, increase the blood flow through the heart and are used to relieve and prevent angina. Large doses of coronary vasodilators cause such side-effects as flushing of the face, severe headache, and fainting. Peripheral vasodilators affect blood flow to the limbs; they include alpha blockers and some calcium-channel blockers. Certain of the latter (e.g. nifedipine) are used to treat conditions due to poor circulation, such as Raynaud's disease and intermittent claudication.

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  • Vasodilator — Vas o*di*lat or, a.[L. vas a vessel + dilator.] (Physiol.) Causing dilation or relaxation of the blood vessels; as, the vasodilator nerves, stimulation of which causes dilation of the blood vessels to which they go. These nerves are also called… …   The Collaborative International Dictionary of English

  • vasodilator — [vas΄ōdī′lāt΄ər, vā′zōdī′lāt΄ər] adj. [ VASO + DILATOR] Physiol. causing dilatation of the blood vessels n. a nerve or drug causing such dilatation vasodilatation [vas΄ōdil΄ə tā′shən, vā′zōdil΄ə tā′shən] n. vasodilation [vas΄ōdī′lā′shən,… …   English World dictionary

  • vasodilator — 1. An agent that causes dilation of the blood vessel s. SYN: vasodilative (2). 2. A nerve, stimulation of which results in dilation of the blood vessel s. * * * va·so·di·la·tor .vā zō dī .lāt ər n an agent (as a parasympathetic nerve f …   Medical dictionary

  • Vasodilator-stimulated phosphoprotein — Vasodilator stimulated phosphoprotein, also known as VASP, is a human gene.cite web | title = Entrez Gene: VASP vasodilator stimulated phosphoprotein| url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene Cmd=ShowDetailView TermToSearch=7408|… …   Wikipedia

  • vasodilator — noun Date: 1881 an agent (as a parasympathetic nerve fiber or a drug) that induces or initiates vasodilation …   New Collegiate Dictionary

  • Vasodilator — Vasodilatation (von (lateinisch) vas „Gefäß“ und dilatatio „Erweiterung“) bezeichnet die Erweiterung der Blutgefäße. Vasodilatation kann sowohl aktiv, zum Beispiel bei Erschlaffung der Gefäßmuskulatur, als auch passiv, zum Beispiel durch erhöhtes …   Deutsch Wikipedia

  • vasodilator — /vas oh duy lay teuhr, di , duy lay , vay zoh /, n. Physiol., Pharm. a nerve or drug that causes vasodilatation. [1880 85; VASO + DILATOR] * * * …   Universalium

  • vasodilator — noun A drug or chemical agent that causes dilation of the blood vessels thereby reducing blood pressure …   Wiktionary

  • vasodilator — n. something which causes the dilation of blood vessels …   English contemporary dictionary

  • vasodilator — vaso·dilator …   English syllables

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