Definition of tetracycline in English:

tetracycline

noun ˌtɛtrəˈsʌɪkliːnˌtɛtrəˈsaɪklin

Medicine

Any of a large group of antibiotics with a molecular structure containing four rings.
〔医〕四环素（类）
These antibiotics are often obtained from bacteria of the genus Streptomyces
Example sentencesExamples
- It is well established that far less expensive antibiotics, including the penicillins and tetracyclines, are highly effective against Anthrax.
- Some antibiotics, such as tetracycline, are not fully effective when taken with milk or dairy products.
- Moderate acne is often successfully treated with a low-dose oral antibiotic, such as tetracycline or erythromycin.
- This strain was resistant to methicillin, cephalothin, gentamicin, erythromycin, chloramphenicol and tetracycline.
- He was treated with a six-month course of a tetracycline and made a slow and steady recovery.

Origin

1950s: from tetra- + cyclic + -ine⁴.

Definition of tetracycline in US English:

tetracycline

nounˌtɛtrəˈsaɪklinˌtetrəˈsīklēn

Medicine

Any of a large group of antibiotics with a molecular structure containing four rings.
〔医〕四环素（类）
These antibiotics are often obtained from bacteria of the genus Streptomyces
Example sentencesExamples
- Moderate acne is often successfully treated with a low-dose oral antibiotic, such as tetracycline or erythromycin.
- This strain was resistant to methicillin, cephalothin, gentamicin, erythromycin, chloramphenicol and tetracycline.
- He was treated with a six-month course of a tetracycline and made a slow and steady recovery.
- It is well established that far less expensive antibiotics, including the penicillins and tetracyclines, are highly effective against Anthrax.
- Some antibiotics, such as tetracycline, are not fully effective when taken with milk or dairy products.

Origin

1950s: from tetra- + cyclic + -ine.

词汇	tetracycline
释义	Definition of tetracycline in English: tetracycline noun ˌtɛtrəˈsʌɪkliːnˌtɛtrəˈsaɪklin Medicine Any of a large group of antibiotics with a molecular structure containing four rings. 〔医〕四环素（类） These antibiotics are often obtained from bacteria of the genus Streptomyces Example sentencesExamples It is well established that far less expensive antibiotics, including the penicillins and tetracyclines, are highly effective against Anthrax. Some antibiotics, such as tetracycline, are not fully effective when taken with milk or dairy products. Moderate acne is often successfully treated with a low-dose oral antibiotic, such as tetracycline or erythromycin. This strain was resistant to methicillin, cephalothin, gentamicin, erythromycin, chloramphenicol and tetracycline. He was treated with a six-month course of a tetracycline and made a slow and steady recovery. Origin 1950s: from tetra- + cyclic + -ine⁴. Definition of tetracycline in US English: tetracycline nounˌtɛtrəˈsaɪklinˌtetrəˈsīklēn Medicine Any of a large group of antibiotics with a molecular structure containing four rings. 〔医〕四环素（类） These antibiotics are often obtained from bacteria of the genus Streptomyces Example sentencesExamples Moderate acne is often successfully treated with a low-dose oral antibiotic, such as tetracycline or erythromycin. This strain was resistant to methicillin, cephalothin, gentamicin, erythromycin, chloramphenicol and tetracycline. He was treated with a six-month course of a tetracycline and made a slow and steady recovery. It is well established that far less expensive antibiotics, including the penicillins and tetracyclines, are highly effective against Anthrax. Some antibiotics, such as tetracycline, are not fully effective when taken with milk or dairy products. Origin 1950s: from tetra- + cyclic + -ine.
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