We don't have synonyms for burettes yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are curette, burette and curettes.
(n) :
(chemistry) A glass tube with fine gradations and a stopcock at the bottom, used in laboratory procedures for accurate fluid dispensing and titration.
(n) :
(chemistry) A glass tube with fine gradations and a stopcock at the bottom, used in laboratory procedures for accurate fluid dispensing and titration.