Stirrer (noun)

1. A utensil used for stirring a liquid or mixture, especially in cooking or mixing ingredients.
2. A device used for stirring a mixture or container, especially in scientific experiments or laboratory work.

Origin:

From middle english stirren, from old english styrian, "to stir".

Examples:

1. She grabbed a spoon from the kitchen, which she would use as a stirrer to mix the ingredients in the bowl.
2. He picked up the stirrer, which was made of plastic, and began to mix the contents of the flask.
3. She added sugar to the coffee, using a stirrer to mix it in until it dissolved completely.
4. He placed the stirrer in the beaker, making sure it was positioned just right to avoid splashing the mixture.
5. The chemist picked up a stirrer, which was magnetic, and began to spin it inside the test tube, mixing the chemicals together.