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A long graduated tube with a tap at its foot.
Also known as: Buret, Titration burette
A burette is drawn as a long graduated tube with a tap at the bottom, delivering a measured and variable volume by difference between two readings.
Delivers a measured volume, read as the difference between the level before and after.
Contexts: Laboratory
Is graduated downward from zero at the top, because it measures what has left rather than what remains — which is why a burette reading looks upside down.
Contexts: Laboratory
A long narrow vertical tube with graduations along its length and a small tap drawn at its lower end.