" Pharmacology . A trademark for: a container for a pharmaceutical adapted for inhalation by means of a nebulizer or atomizer; such a container and its contents; the contents themselves", Late Middle English (in an earlier sense).[nebule etymology, nebule origin, 英语词源]
"A moulding of a wavy or serpentine form", Early 19th century; earliest use found in Peter Nicholson (1765–1844), architectural writer and mathematician. Apparently from French nébulénebuly; however, compare French nébules (plural) architectural moulding of a wavy form.