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Definition of
cesium noun
from the Oxford Advanced American Dictionary
cesium
noun
noun
NAmE
/
/
ˈsiziəm
/
/
[
uncountable
]
(
symbol
Cs
)
jump to other results
a chemical element.
Cesium
is a soft silver-white metal that reacts strongly in water, used in
photoelectric cells
.
See
cesium
in the Oxford Advanced Learner's Dictionary
Check pronunciation:
cesium
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