| 释义 | 
		tet·ra·cy·cline AHD[tĕt'rə-sīʹklēn', -klĭn] D.J.[ˌtetrəˈsaɪˌkliːn, -klɪn]K.K.[ˌtɛtrəˈsaɪˌklin, -klɪn]n.(名词)- A yellow crystalline compound, C22H 24N 2O 8, synthesized or derived from certain microorganisms of the genus Streptomyces  and used as a broad-spectrum antibiotic. 四环素:黄色结晶化合物,C22H 24N 2O 8,人工合成或得自 链霉菌 属微生物,并用做广谱抗生素 
 
 - An antibiotic, such as chlortetracycline and oxytetracycline, having the same basic structure.四环素类抗生素:有同样基本结构的抗生素,如氯四环素和氧化四环素
 
 
 - tetra- tetra-
 
 - cycl(ic) cycl(ic)
 
 - -ine 2-ine2
 
 
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