資料來源 : pyDict
銫[金屬元素]
資料來源 : Webster's Revised Unabridged Dictionary (1913)
Caesium \C[ae]"si*um\, n. [NL., from L. caesius bluish gray.]
(Chem.)
A rare alkaline metal found in mineral water; -- so called
from the two characteristic blue lines in its spectrum. It
was the first element discovered by spectrum analysis, and is
the most strongly basic and electro-positive substance known.
Symbol Cs. Atomic weight 132.6.
資料來源 : WordNet®
caesium
n : a soft silver-white ductile metallic element (liquid at
normal temperatures); the most electropositive and
alkaline metal [syn: {cesium}, {Cs}, {atomic number 55}]