Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
angiotonin is a noun meaning "any of several vasoconstrictor substances (trade name Hypertensin) that cause narrowing of blood vessels". It carries one recorded sense.
any of several vasoconstrictor substances (trade name Hypertensin) that cause narrowing of blood vessels
trademark
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 angiotonin come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.