Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
subscript is a noun and adjective meaning "a character or symbol set or printed or written beneath or slightly below and to the side of another character". It carries 2 recorded senses.
a character or symbol set or printed or written beneath or slightly below and to the side of another character
written or printed below and to one side of another character
printing
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 subscript come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.