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Definition of
SI abbreviation
from the Oxford Advanced American Dictionary
SI
abbreviation
abbreviation
NAmE
/
/
ˌɛs ˈaɪ
/
/
jump to other results
International System
(used to describe units of measurement; from French
‘
Système International
’
)
SI units
See
SI
in the Oxford Advanced Learner's Dictionary
Check pronunciation:
SI
Other results
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silicon
noun
Nearby words
shy away
phrasal verb
shyster
noun
SI
abbreviation
Siamese cat
noun
Siamese twin