## Encyclopedia > Pipette

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# Pipette

A pipette is a glass tube used for the delivery of a measured quantity of liquids. There are two kinds of pipettes, a kind with a bulbous middle section that has a single mark for the quantitative delivery of a single volume of liquid each time, and another that has many graduated marks, much like a graduated cylinder, that can deliver moderately accurate volumes (to within a few percent) of liquids in variable amounts.

A pipette used for the delivery of small fractions of a milliliter of liquid is called a micropipette.

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