[f. as prec. + -ING1.] lit. The process of alloying with mercury; hence, of intimately combining different elements into one. (Mostly gerundial or attrib.)
1753. [See AMALGAMATE v. 1.]
178996. Morse, Amer. Geog., II. 301. Quicksilver sent over to America for the purpose of amalgamating.
1859. Sevin, Mexico, in Jrnl. R. G. S., XXX. 48. Smelting and amalgamating works.