CALCIUM

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does calcium mean? 

• CALCIUM (noun)
  The noun CALCIUM has 1 sense:

1. a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals

  Familiarity information: CALCIUM used as a noun is very rare.

 Dictionary entry details 

• CALCIUM (noun)

Sense 1

Meaning:

A white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals

Classified under:

Nouns denoting substances

Synonyms:

atomic number 20; Ca; calcium

Hypernyms ("calcium" 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.)

Hyponyms (each of the following is a kind of "calcium"):

calcium ion; factor IV (ion of calcium; a factor in the clotting of blood)

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

fluor; fluorite; fluorspar (a soft mineral (calcium fluoride) that is fluorescent in ultraviolet light; chief source of fluorine)

gypsum (a common white or colorless mineral (hydrated calcium sulphate) used to make cements and plasters (especially plaster of Paris))

burnt lime; calcined lime; calcium oxide; calx; fluxing lime; lime; quicklime; unslaked lime (a white crystalline oxide used in the production of calcium hydroxide)

limestone (a sedimentary rock consisting mainly of calcium that was deposited by the remains of marine animals)

Derivation:

calcify (convert into lime)

calcify (turn into lime; become calcified)

calcify (become impregnated with calcium salts)

 Context examples 

Encoded by human Annexin A5 Gene, Annexin A5 is a 35 kD 320-amino acid monomeric placental protein similar to PP4-X that contains 4 annexin repeats; some may bind calcium and phospholipid.

(Annexin A5 Protein, NCI Thesaurus)

It is also used as an acidulant to control pH and acts as an anticoagulant by chelating calcium in blood.

(Anhydrous Citric Acid, NCI Thesaurus)

Glutamate excess causes neurotoxicity by increasing intracellular calcium, which enhances oxidative stress and mitochondrial damage.

(Amyotrophic Lateral Sclerosis Pathway, NCI Thesaurus/KEGG)

An antibody drug conjugate containing the humanized monoclonal antibody, hRS7, against tumor-associated calcium signal transducer 2 (TACSTD2 or TROP2) and linked to the active metabolite of irinotecan, 7-ethyl-10-hydroxycamptothecin (SN-38), with potential antineoplastic activity.

(Anti-TROP-2 Antibody-Drug Conjugate IMMU-132, NCI Thesaurus)

Natural or synthetic Antihypertensive Preparations reduce elevated blood pressure through diverse mechanisms: calcium channel (and conductance) blockage, beta- and alpha-adrenergic blockage, angiotensin-converting enzyme inhibition, etc.. Their effects induce diuresis and peripheral vasodilation.

(Antihypertensive Preparation, NCI Thesaurus)

Increased cAMP levels leads to a reduction in intracellular calcium concentration, thereby causes smooth muscle relaxation and decreases the intensity of uterine contractions.

(Meluadrine, NCI Thesaurus)

Transduce signals via at least two pathways, one inhibiting adenylyl cyclase and the other regulating phospholipide metabolism and calcium concentration.

(Melatonin Receptor, NCI Thesaurus)

A long-acting calcium channel antagonist, Amlodipine inhibits transmembrane calcium influx into vascular smooth muscle.

(Amlodipine Besylate/Benazepril Hydrochloride, NCI Thesaurus)

Amlodipine inhibits the influx of extracellular calcium ions into myocardial and peripheral vascular smooth muscle cells, thereby preventing vascular and myocardial contraction.

(Amlodipine, NCI Thesaurus)

It is also being studied in the treatment of hypercalcemia (high levels of calcium in the blood) and bone pain caused by cancer.

(Alendronate sodium, NCI Dictionary)