D defs.my
Entry 2 senses Webster, 1913

Beaker

/(bēk"ẽr)/ · Beak·er · IPA /ˈbiːkɚ/
01 n. A large drinking cup, with a wide mouth, supported on a foot or standard.
  1. 1.
    A large drinking cup, with a wide mouth, supported on a foot or standard.
  2. 2.
    An open-mouthed, thin glass vessel, having a projecting lip for pouring; -- used for holding solutions requiring heat.