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Longman Dictionary of Contemporary English
▪ The burette is placed in water and the air pressure equalised by opening and closing the tap.
The Collaborative International Dictionary

Burette \Bu*rette"\, n. [F., can, cruet, dim. of buire flagon.] (Chem.) An apparatus for delivering measured quantities of liquid or for measuring the quantity of liquid or gas received or discharged. It consists essentially of a graduated glass tube, usually furnished with a small aperture and stopcock.

Douglas Harper's Etymology Dictionary

1836, from French burette "small vase, cruet," diminutive of buire "vase for liquors," in Old French "jug," variant of buie (12c.) "bottle, water jog," from Frankish *buk- or some similar Germanic source (see bucket (n.)). As a laboratory measuring tube, from 1836.


n. (context chemistry English) A glass tube with fine gradations and a stopcock at the bottom, used in laboratory procedures for accurate fluid dispensing and titration.


n. measuring instrument consisting of a graduated glass tube with a tap at the bottom; used for titration [syn: buret]


A burette (also buret) is a device used in analytical chemistry for the dispensing of variable, measured amounts of a chemical solution. A volumetric burette delivers measured volumes of liquid. Piston burettes are similar to syringes, but with precision bore and plunger. Piston burettes may be manually operated or may be motorized. A weight burette delivers measured weights of liquid.

Usage examples of "burette".

Run this from a burette into the flask until the colour equals that of the assay.

These are bunsen burners, this is a test-tube, this is a pipette, that's a burette, that is a retort, a crucible .

Prescott, surrounded by his retorts, crucibles, burettes, and condensers, received us much more graciously than I had had any reason to anticipate.

Several burettes smashed on to the floor, releasing noxious fumes into the air and sending the Companions, with their acute sense of smell, into fits of coughing and spluttering.

Assorted burettes, flasks and petrie dishes, the contents of which Katrina could only speculate about, challenged half-empty food containers for space on the desk, tables and countertops.