Definitions

from The Century Dictionary.

  • noun A kind of alum occurring in feathery, plumose forms.

Etymologies

Sorry, no etymologies found.

Examples

  • We re - fer the reader to the memoir itfelf for an interefling defcription of the mine Del M.ling which produces the moft beautiful plume-alum, cryftallised in fmall needle forms; and of feveral acid fprings, of which M. Caffini has brought home famplcs, which have been analyfed by M. Lavoi/ier.

    The Monthly Review

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