[f. as prec. + -ING1.] lit. The process of alloying with mercury; hence, of intimately combining different elements into one. (Mostly gerundial or attrib.)

1

1753.  [See AMALGAMATE v. 1.]

2

1789–96.  Morse, Amer. Geog., II. 301. Quicksilver … sent over to America for the purpose of amalgamating.

3

1859.  Sevin, Mexico, in Jrnl. R. G. S., XXX. 48. Smelting and amalgamating works.

4