1. COUNTABLE NOUN
A beaker is a plastic cup used for drinking, usually one with no handle. [British]
2. COUNTABLE NOUN
A beaker is a large cup or glass. [US]
3. COUNTABLE NOUN
A beaker is a glass or plastic jar which is used in chemistry.
a. A large drinking vessel with a wide mouth, an open cup or goblet. (Now chiefly in literary use.)
1348 Acc. Edw. Pr. Wales in Promptorium Parvulorum 35 Magne pecie argenti, vocate Bikers.
1420 in F. J. Furnivall Fifty Earliest Eng. Wills (1882) 45 A becure of seluer.
c1440 Promptorium Parvulorum 35/2 Byker, cuppe [v.r. bikyr], cimbium.
1600 S. Rowlands Letting of Humors Blood vi. 75 Fill him his Beaker, he will never flinch, To giue a full quart pot the empty pinch.
1726 A. Pope tr. Homer Odyssey IV. xv. 117 The Prince a silver beaker chose.
1872 E. A. Freeman Hist. Ess. 14 His cupbearer was carrying..a royal beaker full of wine.
1: a large drinking cup that has a wide mouth and is sometimes supported on a standard
2: a deep widemouthed thin-walled vessel usually with a lip for pouring that is used especially in science laboratories
UK a cup, usually with no handles, used for drinking:
She gave the children beakers of juice.
(British English) a cup, usually made of plastic and often without a handle, used for drinking from
She drank from a plastic beaker.
BRITISH a plastic cup with straight sides used for drinking