|—the internet domain name for|
|—the chemical symbol for|
|1.||(in the US) Emergency Room (in hospitals)|
|[Latin: Queen Elizabeth]|
|—suffix forming nouns|
|1.||a person or thing that performs a specified action: reader; decanter; lighter|
|2.||a person engaged in a profession, occupation, etc: writer; baker; bootlegger|
|3.||a native or inhabitant of: islander; Londoner; villager|
|4.||a person or thing having a certain characteristic: newcomer; double-decker; fiver|
|[Old English -ere; related to German -er, Latin -ārius]|
|forming the comparative degree of adjectives (deeper, freer, sunnier, etc) and adverbs (faster, slower, etc)|
|[Old English -rd, -re (adj), -or (adv)]|
The symbol for the element erbium.
The symbol for erbium.
|erbium (ûr'bē-əm) Pronunciation Key
A soft, silvery, metallic element of the lanthanide series. It is used as a neutron absorber in nuclear technology and in light amplification for fiber-optic telecommunications. Atomic number 68; atomic weight 167.26; melting point 1,497°C; boiling point 2,900°C; specific gravity 9.051; valence 3. See Periodic Table.
(Er), chemical element, rare-earth metal of the lanthanoid series of the periodic table. Erbium is a grayish silver element that also occurs as a series of pink compounds. It had limited commercial uses until the age of fibre-optic telecommunications, when it became an important constituent of the signal repeaters in long-distance telephone cables.
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