Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
doxycycline is a noun meaning "an antibiotic derived from tetracycline that is effective against many infections". It carries one recorded sense.
an antibiotic derived from tetracycline that is effective against many infections
“Vibramycin is the trade name of doxycycline”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for doxycycline come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.