Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
chemosorption is a noun meaning "adsorption (especially when irreversible) by means of chemical instead of physical forces". It carries one recorded sense.
adsorption (especially when irreversible) by means of chemical instead of physical forces
“chemisorption of gaseous nitrogen on iron catalysts”
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 chemosorption come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.