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: C Cæ Có Cœ C- C. C2 Ca Cb Cc Cd Ce Cf Cg Ch Ci Cj Cl Cm Cn Co Cp Cr Cs Ct Cu Cv Cw Cx Cy Cz

Table of Contents POS
HYPHEN
WORDNET DICTIONARY
CIDE DICTIONARY
OXFORD DICTIONARY

caesium

POS

Noun

HYPHEN

cae=si=um

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WORDNET DICTIONARY

Noun caesium has 1 sense

caesium(n = noun.substance) atomic number 55, cesium, cs - a soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal; Array

is a kind of metal, metallic element

has particulars: cesium 137

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CIDE DICTIONARY

caesium, n. [NL., from L. caesius bluish gray.].

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 number 55. Atomic weight 132.6. [1913 Webster]

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OXFORD DICTIONARY

caesium, n. (US cesium) a soft silver-white element of the alkali metal group, occurring naturally in a number of minerals, and used in photoelectric cells.

Idiom

caesium clock an atomic clock that uses caesium.

Usage

Symb.: Cs.

Etymology

as CAESIOUS (from its spectrum lines)

For further exploring for "caesium" in Webster Dictionary Online