Ion of calcium; a factor in the clotting of blood(noun)
WordNet. Princeton University. 2010.
Use "calcium ion" in a sentence
"During its period of activity, protein kinase aids in phosphylating proteins that open calcium ion channels to increase calcium action in the neuron, leading to a biological response such as the release of a neurotransmitter from the axon bulb."
"These calcium ion channels can be closed by the action of an enzyme called phosphoprotein phosphatase which dephosphorylates the proteins."
"calcium ion channels dephosphorylated proteins that shut off the calcium ion channels and bring the system to rest."