| 单词 | extrasystole |
| 释义 | extrasystole —extrasystolic /ek'streuh sis tol"ik/, adj. /ek'streuh sis"teuh lee/, n. Pathol. a premature contraction of the heart, resulting in momentary interruption of the normal heartbeat. Also called premature beat, premature contraction. [1895-1900; < NL; see EXTRA-, SYSTOLE] |
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