1. （通常无柄的）塑料杯
A beaker is a plastic cup used for drinking, usually one with no handle.

2. 大口杯；大玻璃杯
A beaker is a large cup or glass.

3. 烧杯
A beaker is a glass or plastic jar which is used in chemistry.

1. a cup (usually without a handle)

2. a flatbottomed jar made of glass or plastic
used for chemistry