English Lexicon

Calcium-binder

/ˈkæl.si.əm ˈbaɪn.dər/
nounCEFR C1 (Advanced)Top #45000 frequency
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Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    A chemical substance or molecule that binds or chelates calcium ions in a solution or biological system.

    "EDTA acts as a strong calcium-binder, preventing blood coagulation by removing free calcium ions."
  2. 2

    A protein or cellular structure that specifically attaches to calcium to regulate signaling pathways.

    "Calmodulin is a primary intracellular calcium-binder found in eukaryotic cells."

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Linguistic Origin & Historical Etymology

The term combines 'calcium', derived from the Latin 'calx' (limestone) via modern chemical nomenclature coined in the early 19th century, with 'binder', originating from Middle English 'binden' (to tie or fasten). Together, the compound emerged in biochemical and pharmacological literature to describe agents capable of sequestering calcium ions.

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