Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
autoloading is an adjective meaning "(of firearms) capable of automatic loading and firing continuously". It carries one recorded sense.
(of firearms) capable of automatic loading and firing continuously
“an autoloading rifle”
Definitions, synonyms and semantic relations for autoloading come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.