Definition of gum lac in English:

gum lac

noun

historical
  • The resinous secretion produced by lac insects; any of various preparations of this.

Origin

Mid 16th century; earliest use found in William Bullein (c1515–1576), physician. From gum + lac, apparently so called because natural lac (which is harvested from trees although produced by insects) is reminiscent of gum (which is a secretion of the tree itself).

Pronunciation

gum lac

/ˈɡʌm lak/