overdrive suppression

suppression /sup·pres·sion/ (sŭ-presh´un)

1. the act of holding back or checking.

2. sudden stoppage of a secretion, excretion, or normal discharge.

3. in psychiatry, conscious inhibition of an unacceptable impulse or idea as contrasted with repression, which is unconscious.

4. in genetics, masking of the phenotypic expression of a mutation by the occurrence of a second (suppressor) mutation at a different site from the first; the organism appears to be reverted but is in fact doubly mutated.

5. inhibition of the erythrocytic stage of plasmodium as prophylaxis for clinical attacks of malaria.

6. cortical inhibition of perception of objects in all or part of the visual field of one eye during binocular vision.

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bone marrow suppression  suppression of bone marrow activity, resulting in reduction in the number of platelets, red cells, and white cells.

overdrive suppression  transient suppression of automaticity in a cardiac pacemaker following a period of stimulation by a more rapidly discharging pacemaker.

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overdrive suppression

[-drīv]

Etymology: AS, ofer + drifan, to drive

the inhibitory effect of a faster cardiac pacemaker on a slower one.

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overdrive suppression

inhibitory effect of a fast cardiac pacemaker on a slow pacemaker.