magma, ătis, n., = μάγμα,
the dregs of an unguent : faecem unguenti magma appellant, Plin. 13, 2, 3, § 19; Scrib. Comp. 157.
·noun The glassy base of an eruptive rock. II. Magma ·noun A salve or confection of thick consisten...
Webster's Dictionary of the English Language