Chronotropic

Chronotropic effects (from chrono-, meaning time, and tropos, `a turn`) are those that change the heart rate. Chronotropic drugs may change the heart rate by affecting the nerves controlling the heart, or by changing the rhythm produced by the sinoatrial node. Positive chronotropes increase heart rate; negative chronotropes decrease heart rate. .....
Found on http://en.wikipedia.org/wiki/Chronotropic

chronotropic

(chrono- + Gr. tropikos turning) affecting the time or rate, as the rate of contraction of the heart.
Found on http://users.ugent.be/~rvdstich/eugloss/DIC/dictio17.html

chronotropic

(kron″o-tro┬┤pik) affecting the time or rate.
Found on http://www.encyclo.co.uk/local/21001

chronotropic

<pharmacology> Affecting the time or rate, as the rate of contraction of the heart. ... Origin: Gr. Tropikos = turning ... (18 Nov 1997) ...
Found on http://www.encyclo.co.uk/local/20973

chronotropic

chronotropic Affecting the rate of rhythmic movements; such as, the rate of contractions of the heart.
Found on http://www.wordinfo.info/words/index/info/view_unit/2781/5

chronotropic

Type: Term Pronunciation: kron′ō-trop′ik Definitions: 1. Affecting the rate of rhythmic movements (heartbeat).
Found on http://www.medilexicon.com/medicaldictionary.php?t=17536
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