单词	pacemaker
释义	pacemaker noun pace·​mak·​er ˈpās-ˌmā-kər  1 a : one that sets the pace for another b : one that takes the lead or sets an example 2 a : a group of cells or a body part (such as the sinus node of the heart) that serves to establish and maintain a rhythmic activity b : an electrical device for stimulating or steadying the heartbeat or reestablishing the rhythm of an arrested heart pacemaking ˈpās-ˌmā-kiŋ  noun Synonyms bellwether leader pacer pacesetter trendsetter See all Synonyms & Antonyms Example Sentences has long been regarded as a pacemaker in home electronics Recent Examples on the Web After suffering a stroke days before the primary, Mr. Fetterman had a pacemaker and defibrillator implanted. James Freeman, WSJ, 2 Sep. 2022 During the surgery, a pacemaker-like device is implanted under the scalp. Erika Edwards, NBC News, 30 Aug. 2022 After the stroke, Fetterman was diagnosed with a heart condition, cardiomyopathy and fitted with a pacemaker. Sarah Ewall-wice, CBS News, 12 Aug. 2022 When the twins were two years old, Lily was diagnosed with a third-degree heart block, and received a pacemaker. Emily Burack, Town & Country, 26 July 2022 Researchers have published a proof-of-concept study describing a biodegradable, wireless pacemaker that might be used in patients who need temporary assistance after cardiac surgery. Scott Lafee, San Diego Union-Tribune, 19 July 2022 Her whole family — including her mother, who has a heart condition and a pacemaker — has wrestled with bouts of Covid, with no insurance. New York Times, 14 July 2022 Rogers has created a number of electronic devices that the body can absorb, including a transient pacemaker in 2021. Margaret Osborne, Smithsonian Magazine, 30 June 2022 So the massive heart attack wound up putting in a pacemaker-defibrillator in him. Dalton Ross, EW.com, 20 June 2022 See More Word History First Known Use 1884, in the meaning defined at sense 1a Medical Definition pacemaker noun pace·​mak·​er ˈpā-ˌsmā-kər  1 : a group of cells or a body part (as the sinoatrial node of the heart) that serves to establish and maintain a rhythmic activity 2 : an electrical device for stimulating or steadying the heartbeat or reestablishing the rhythm of an arrested heart called also pacer pacemaker noun as in pacer one that takes the lead or sets an example has long been regarded as a pacemaker in home electronics Synonyms & Similar Words Relevance pacer leader pioneer pacesetter bellwether trendsetter innovator forerunner precursor harbinger herald foregoer groundbreaker Antonyms & Near Antonyms imitator follower me-tooer Johnny-come-lately
随便看	megaseismic megasporangia megasporangium megaspore megaspore mother cell megaspores megasporic megasporocyte megasporogeneses megasporogenesis megasporophyll megasporophylls megass megasse megasses megastar megastardom megastardoms megastars megastores megastructure megasynthetic megathere megatheres megatheria

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。