Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
dimensioning is an adjective meaning "indicating or determining size and position in space". It carries one recorded sense.
indicating or determining size and position in space
“the ultrasonic dimensioning measurement”
“an ultrasonic dimensioning arrangement of the heart”
Definitions, synonyms and semantic relations for dimensioning come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.