Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
reabsorption is a noun meaning "the organic process in which the substance of some differentiated structure that has been produced by the body undergoes lysis and assimilation". It carries one recorded sense.
the organic process in which the substance of some differentiated structure that has been produced by the body undergoes lysis and assimilation
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 reabsorption come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.