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