Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
r-2 is a noun meaning "street names for flunitrazepan". It carries one recorded sense.
street names for flunitrazepan
Definitions, synonyms and semantic relations for r-2 come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.