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precursor [prɪ'kɜ:sə] n
chem. prekursory drog
pharma., chem. prekurzor
 English thesaurus
precursor [prɪ'kɜ:sə] abbr.
abbr., el. gas source used in the CVD reaction; liquid source used in the CVD reaction
USA forerunner (a sign of something that is going to happen Val_Ships)
precursor: 10 phrases in 6 subjects
Chemistry3
Commerce1
Environment2
General1
Health care1
Pharmacy and pharmacology2