a defect in the electrical impulses of the heart resulting in any of various arrhythmias or irregularities in the heartbeat.
impaired conduction or blocking of the impulse that regulates the heartbeat, resulting in a lack of coordination between the beating of the atria and the ventricles Also called Adams-Stokes syndrome, atrioventricular block
heart block n.
A condition in which faulty transmission of the impulses that control the heartbeat results in a lack of coordination in the contraction of the atria and ventricles of the heart.
[hahrt-beet] /ˈhɑrtˌbit/ noun, Physiology. 1. a pulsation of the , including one complete systole and diastole. /ˈhɑːtˌbiːt/ noun 1. one complete pulsation of the heart See diastole, systole n. 1850, from heart + beat (n.). From the beginning used as a figure for “a very brief time.” heartbeat heart·beat (härt’bēt’) n. A single complete pulsation […]
noun 1. . noun 1. a chair back having a form resembling that of a somewhat heart-shaped medieval shield.
noun, Pathology. 1. damage to an area of heart muscle that is deprived of oxygen, usually due to blockage of a diseased coronary artery, typically accompanied by chest pain radiating down one or both arms, the severity of the attack varying with the extent and location of the damage; myocardial infarction. noun 1. any sudden […]
/ˈhiːθˌfaʊl/ noun 1. (in British game laws) an archaic name for the black grouse Compare moorfowl
noun 1. a European grass, Sieglingia decumbens, growing in spongy, wet, cold soils. noun 1. a perennial European grass, Danthonia decumbens, with flat hairless leaves