D defs.my
Entry 1 sense Webster, 1913

Tartro-

· Tar·tro- · IPA /ˌtɑː(ɹ)tɹə-/
01 A combining form (also used adjectively) used in chemistry to denote the presence of tartar or of some of its compounds or derivatives.
  1. 1.
    A combining form (also used adjectively) used in chemistry to denote the presence of tartar or of some of its compounds or derivatives.