Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
hs1 is a noun meaning "a herpes virus that causes oral herpes". It carries one recorded sense.
a herpes virus that causes oral herpes
Definitions, synonyms and semantic relations for hs1 come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.