Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
sentiency is a noun meaning "the faculty through which the external world is apprehended". It carries one recorded sense.
the faculty through which the external world is apprehended
“in the dark he had to depend on touch and on his senses of smell and hearing”
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 sentiency come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.