Library / English Dictionary

    ER

    Pronunciation (US): Play  (GB): Play

     I. (noun) 

    Sense 1

    Meaning:

    A room in a hospital or clinic staffed and equipped to provide emergency care to persons requiring immediate medical treatmentplay

    Synonyms:

    emergency room; ER

    Classified under:

    Nouns denoting man-made objects

    Hypernyms ("ER" is a kind of...):

    hospital room (a room in a hospital for the care of patients)

    Sense 2

    Meaning:

    A trivalent metallic element of the rare earth group; occurs with yttriumplay

    Synonyms:

    atomic number 68; Er; erbium

    Classified under:

    Nouns denoting substances

    Hypernyms ("Er" is a kind of...):

    metal; metallic element (any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.)

    Holonyms ("Er" is a substance of...):

    fergusonite (a dark mineral consisting of oxides of yttrium and erbium and tantalum and other minerals)

    gadolinite; ytterbite (a mineral that is a source of rare earths; consists of silicates of iron and beryllium and cerium and yttrium and erbium)

    Credits

     Context examples: 

    Pipendoxifene antagonizes binding of estradiol to estrogen receptor alpha (ER alpha), thereby inhibiting ER alpha-mediated gene expression, interfering with estrogen activity and inhibiting estrogen-stimulated growth in estrogen-dependent breast cancer.

    (Pipendoxifene, NCI Thesaurus)

    Another substrate of parkin is a GPCR-like protein called Pael-R that accumulates in the ER of affected cells and may cause neuronal cell death.

    (Parkinson's Disease Pathway BioCarta, NCI Thesaurus/BIOCARTA)

    Furthermore, agonist receptors activate calcium channels of the endoplasmic reticulum (ER) via phospholipase C and inositol 1,4,5-trisphosphate.

    (Nitric Oxide Pathway, NCI Thesaurus/BIOCARTA)

    The outer nuclear membrane is continuous with the rough endoplasmic reticulum (ER) and has ribosomes attached.

    (Nuclear Outer Membrane, NCI Thesaurus)

    Alterations in Ca2+ homeostasis and accumulation of misfolded proteins in the ER cause ER stress.

    (Apoptosis Pathway, NCI Thesaurus/KEGG)

    Cytochrome P450 2D5 is a rat liver ER membrane-bound heme-thiolate monooxygenase, involved in an NADPH-dependent electron transport pathway that oxidizes various compounds, including steroids, fatty acids, and xenobiotics.

    (Cytochrome P450 2D5, NCI Thesaurus)

    Don't forget you're to tell Mr.—er—Haythorne who I am.

    (Love of Life and Other Stories, by Jack London)

    APP in the ER is cleaved at residue 17 by alpha-secretase protease activity encoded by ADAM-10 and TACE.

    (Amyloid Beta-Peptide Pathway, NCI Thesaurus/BIOCARTA)

    FAD-linked PS1 mutation downregulates the unfolded protein response and leads to vulnerability to ER stress.

    (Alzheimer's Disease Pathway KEGG, NCI Thesaurus/KEGG)

    —er—quarrelsome, and harsh measures are necessary.

    (The Sea-Wolf, by Jack London)


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