Term: metacycline
IPA: ˌmɛt.əˈsaɪˌklin

==English==
[[File:Metacycline.svg|thumb|250px|Chemical structure of '''metacycline''']]
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===Alternative forms===
* {{alter|en|methacycline}}

===Etymology===
{{blend|en|methylidene|oxytetracycline}}.

===Pronunciation===
* {{IPA|en|/ˌmɛt.əˈsaɪˌklin/|a=GA}}

===Noun===
{{en-noun|-}}

# {{lb|en|pharmaceutical drug}} A [[semisynthetic]] [[tetracycline]] [[antibiotic]] C<sub>22</sub>H<sub>22</sub>N<sub>2</sub>O<sub>8</sub> with longer [[duration]] of action than most other tetracyclines used