/'bi:kə(r); `bikɚ/
n
1 open glass container with a lip for pouring, used in chemistry laboratories 烧杯.
2 tall narrow cup for drinking, often without a handle 细高的杯（常无柄）
*a beaker of coffee from the drinks machine 取自饮料机的一杯咖啡.

n[C]
[Date: 1300-1400; Language: Old Norse;Origin: bikarr, probably from Old Saxon bikeri, from Medieval Latin bicarius; PITCHER]
BrE a drinking cup with straight sides and no handle, usually made of plastic
a glass cup with straight sides that is used in chemistry for measuring and heating liquids