- the chemical expression for erbium an unusual planet element This has atomic quantity 68 and an atomic weight of 16726
- a trivalent metallic part of the rare earth team; takes place with yttrium
- a room in a hospital or center staffed and equipped to present crisis treatment to people calling for immediate hospital treatment
1. er. 2. Endoplasmic reticulum. 3. Estrogen receptor. 4. Extended release.
as a sound of doubt or uncertainty, attested from mid-19c.
- acronym of er, by 1965.
Their inice is particularly conspicuous in the prominent place accorded ie sun-god Re, and in the creation-legend that made him the er of gods and men.