Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
postprandial is an adjective meaning "following a meal (especially dinner)". It carries one recorded sense.
following a meal (especially dinner)
“his postprandial cigar”
“took a postprandial walk”
Definitions, synonyms and semantic relations for postprandial come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. .