calcium ion
1
4.0
- noun
- /ˈkæl.si.əm aɪ.ɒn/
- Specialized
:
ión de calcio
- These two effects result in the reduction of calcium ions available for the formation of Friedel's salt.
- calcium ion accumulation
Examples
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In the present study, calcium ion decreased with the increase in salinity levels. Calcium influx increased in the shoot and decreased in the root with the increase in salinity levels (Table 4).
Academic text (2014) -
Owing to the synergistic effects of carbonation and the leaching of calcium ions, the outermost layers of the mortars bind less chloride compared to their neighboring layers.
Academic text (2018) -
It has been generally accepted that this reaction proceeds optimally only in the presence of calcium ions.
Academic text (1993) -
The sudden fluctuation of the concentration of calcium ions inside and outside of neural cells is the basis of neural signaling in animals.
Blog text (34) -
These calcium ions bind to an extracellular protein, which causes that protein to shift and expose a site where a bridge between adjacent fibers can form.
Blog text (34) -
This could be explained by a balance between the reduction of osteoclastic reabsorption by alendronate and the increased intestinal absorption of calcium by alfacalcidol, resulting in a higher influx of calcium ions at the bone level.
Academic text (2007) -
The movement of calcium ions back and forth within the cells allows muscles to relax and contract.
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When sperm and egg first meet, the egg releases a burst of calcium ions into its interior.
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The capsaicin key opens a door in the cell membrane that allows calcium ions to flood into the cell.
Synonyms
A calcium ion that helps blood form clots
Surface Forms
Morphology
The meaning is directly compositional: combining 'calcium' (the element) with 'ion' (a charged atom) yields a charged calcium atom, which matches the provided definition. This noun-noun chemical naming is cross-linguistically regular and follows standard science vocabulary patterns, so a B1 learner who knows both constituents will readily understand it.
Etymology
Calcium ion is a tiny particle of calcium with a positive charge, and that particle is called an ion. Imagine little plus-charged balls that act like helpers or keys to make muscles move and blood clot, so the name refers to the small charged calcium particle that 'helps' many body processes.