The blood pressure when the heart is contracting. It is specifically the maximum arterial pressure during contraction of the left ventricle of the heart. The time at which ventricular contraction occurs is called systole. In a blood pressure reading, the systolic pressure is typically the first number recorded. For example, with a blood pressure of 120/80 ("120 over 80"), the systolic pressure is 120. By "120" is meant 120 mm Hg (millimeters of mercury). A systolic murmur is a heart murmur heard during systole, the time the heart contracts, between the normal first and second heart sounds. "Systolic" comes from the Greek systole meaning "a drawing together or a contraction." The term has been in use since the 16th century to denote the contraction of the heart muscle.
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Relating to, or occurring during cardiac systole.

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sys·tol·ic (sis-tolґik) 1. pertaining to or produced by systole. 2. occurring during systole.

Medical dictionary. 2011.

Look at other dictionaries:

  • Systolic — Sys*tol ic, a. Of or pertaining to systole, or contraction; contracting; esp., relating to the systole of the heart; as, systolic murmur. Dunglison. [1913 Webster] …   The Collaborative International Dictionary of English

  • systolic — (adj.) 1690s, from Mod.L. systolicus, from systole (see SYSTOLE (Cf. systole)) …   Etymology dictionary

  • systolic — systole ► NOUN ▪ the phase of the heartbeat when the heart muscle contracts and pumps blood into the arteries. Often contrasted with DIASTOLE(Cf. ↑diastolic). DERIVATIVES systolic adjective. ORIGIN Greek sustol , from sustellein to contract …   English terms dictionary

  • Systolic — Systole Sys to*le, n. [NL., fr. Gr. ?, fr. ? to contract; sy n with + ? to set, place.] 1. (Gram.) The shortening of the long syllable. [1913 Webster] 2. (Physiol. & Biol.) The contraction of the heart and arteries by which the blood is forced… …   The Collaborative International Dictionary of English

  • systolic — adjective see systole …   New Collegiate Dictionary

  • systolic — /si stol ik/, adj. (of blood pressure) indicating the maximum arterial pressure occurring during contraction of the left ventricle of the heart. Cf. diastolic. [1685 95; SYSTOLE + IC] * * * …   Universalium

  • systolic — adjective Pertaining to a systole or heart contraction …   Wiktionary

  • systolic — adj. pertaining to systole, of a regular contraction of the heart; pertaining to the maximum arterial pressure caused by contraction of the left ventricle of the heart …   English contemporary dictionary

  • systolic — sys·tol·ic …   English syllables

  • systolic —    The measurement of arterial blood pressure at the point of heart contraction (greatest pressure); the higher of the two BP numbers, with diastolic (q.v.) being the lower …   Herbal-medical glossary

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