We found 1 definitions of eres from 1 different sources.
Noun |
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er - a trivalent metallic element of the rare earth group; occurs with yttrium | ||
erbium, Er, atomic number 68 | ||
metallic element, metal any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc. | ||
gadolinite, ytterbite a mineral that is a source of rare earths; consists of silicates of iron and beryllium and cerium and yttrium and erbium | ||
er - a room in a hospital or clinic staffed and equipped to provide emergency care to persons requiring immediate medical treatment | ||
emergency room, ER |