Definitions

1. noun

a small container, typically made of glass or plastic, used in a laboratory or for measuring liquids

“The scientist used a beaker to mix the chemicals.”

2. noun

a cup or mug, especially one used for drinking hot coffee or tea

“She took a sip from her beaker and winced at the scalding temperature.”

3. noun

a container for serving drinks, especially one used at a bar or pub

“The bartender poured a shot into a beaker and handed it to the customer.”