English Words Starting With C

• calcitonin

  nounC2/Technical
  /ˌkælsɪˈtəʊnɪn/A hormone, produced in the thyroid gland, which regulates calcium and phosphate levels in the blood by inhibiting bone resorption.
• calcitriol

  nounC2
  /ˌkælsɪˈtraɪɒl/The active hormonal form of vitamin D (1,25-dihydroxyvitamin D3), a steroid hormone that regulates calcium and phosphate metabolism.
• calcium

  nounB2
  /ˈkælsiəm/A soft, silver-white metallic chemical element (symbol Ca) with atomic number 20, essential for life.
• calcium antagonist

  nounC2
  /ˈkælsiəm ænˈtæɡənɪst/A type of drug that blocks calcium channels in cells, used to treat cardiovascular conditions.
• calcium arsenate

  nounLow/Very Low
  /ˈkalsiəm ˈɑːsəneɪt/A white, crystalline, inorganic compound with the chemical formula Ca3(AsO4)2, used primarily as an insecticide and rodenticide.
• calcium blocker

  nounC1
  /ˈkælsiəm ˌblɒkə/A type of medication that prevents calcium from entering cells of the heart and blood vessels, used to treat high blood pressure and heart conditions.
• calcium carbide

  nounLow
  /ˈkælsiəm ˈkɑːbaɪd/A chemical compound (CaC₂) made from lime and coke, which reacts with water to produce acetylene gas.
• calcium carbonate

  nounC1/C2
  /ˈkælsiəm ˈkɑːbənət/A white, solid chemical compound with the formula CaCO₃, commonly found in rocks (such as limestone) and in the shells of marine organisms.
• calcium channel blocker

  nounC2/Professional
  /ˈkælsiəm ˈtʃænəl ˌblɒkə/A type of drug that prevents calcium from entering cells, used to treat high blood pressure and heart conditions.
• calcium chloride

  nounLow
  /ˈkalsiəm ˈklɔːrʌɪd/A white, crystalline chemical compound of calcium and chlorine (CaCl₂), used to melt ice and as a drying agent.
• calcium cyanamide

  nounC2
  /ˌkælsiəm saɪˈænəmaɪd/A chemical compound (CaCN₂), commonly used as a fertilizer and a precursor to other nitrogen compounds.
• calcium cyanide

  nounVery low frequency
  /ˌkalsɪəm ˈsʌɪənʌɪd/A chemical compound with the formula Ca(CN)2, used industrially as a pesticide and fumigant.
• calcium fluoride

  nounC1/C2
  /ˈkalsɪəm ˈflʊərʌɪd/A crystalline, water-insoluble inorganic compound with the chemical formula CaF₂, found in nature as the mineral fluorite.
• calcium gluconate

  nounSpecialized/Low
  /ˈkælsiəm ˈɡluːkəneɪt/A calcium salt of gluconic acid, used medically as a calcium supplement and treatment for calcium deficiency.
• calcium hydroxide

  nounC2
  /ˈkælsiəm haɪˈdrɒksaɪd/A white, powdery, crystalline chemical compound with the formula Ca(OH)₂, formed by reacting calcium oxide with water.
• calcium hypochlorite

  nounLow
  /ˌkælsiəm ˌhaɪpəˈklɔːraɪt/A chemical compound with formula Ca(ClO)₂, used as a bleaching agent and disinfectant.
• calcium light

  nounHistorical/Low
  /ˈkalsɪəm laɪt/A type of bright, white artificial light produced by incandescence of calcium oxide (lime) in an oxyhydrogen flame.
• calcium metasilicate

  nounC2
  /ˈkælsiəm ˌmɛtəˈsɪlɪkeɪt/A white or colourless inorganic chemical compound with the formula CaSiO3.
• calcium nitrate

  nounC1
  /ˈkælsiəm ˈnaɪtreɪt/A white, crystalline inorganic chemical compound with the formula Ca(NO₃)₂, used primarily as a fertilizer and in the production of explosives and other chemicals.
• calcium oxalate

  nounLow
  /ˈkælsiəm ˈɒksəleɪt/A chemical compound (CaC₂O₄) that forms insoluble crystals, commonly found in kidney stones and some plants.

Showing 441–460 of 13732 words.