A person who sprinkles or something that sprinkles, particularly in religious or ceremonial contexts.
From Latin 'aspersor', agent noun from 'aspergere' (to sprinkle). The '-or' suffix creates a noun meaning 'one who does the action', making this literally 'one who sprinkles'.
An aspersor might be a priest performing aspersion, or it can refer to the device itself—it's one of those rare words where it can mean either the person doing the action or the tool they use.
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