English Words Starting With C

• calc-tufa

  nounRare
  /ˈkælkˌtjuːfə/A porous, white or light-colored limestone formed by precipitation from calcium-rich water around springs, lakes, or groundwater seeps.
• calcaneum

  nounC2
  /kælˈkeɪnɪəm/The large bone forming the heel of the human foot.
• calcaneus

  nounC2
  /kælˈkeɪ.ni.əs/The large, bone forming the heel of the foot.
• calcar

  nounVery Low
  /ˈkalkɑː/A spur or spur-like projection, especially on a bird's leg or a flower.
• calcareous tufa

  nounC2 / Very Low Frequency / Technical
  /kælˈkeə.ri.əs ˈtjuː.fə/A porous, light-colored limestone rock formed by the precipitation of calcium carbonate from spring or river water.
• calceolaria

  nounVery Low
  /ˌkælsiəˈleəriə/A plant of the genus Calceolaria, having slipper-shaped flowers.
• calces

  nounVery Low / Technical
  /ˈkælsiːz/The plural of 'calx', meaning the powdery residue left after the calcination of a metal or mineral; or, in older use, a heel or the heelbone.
• calchas

  nounVery Low
  /ˈkælkæs/A proper noun referring to a legendary Greek seer, most famously from Homer's Iliad.
• calcicole

  nounC2/Rare
  /ˈkalsɪkəʊl/A plant that thrives in soil rich in lime or calcium.
• calciferol

  nounVery Low
  /kælˈsɪfərɒl/A specific form of vitamin D, synthesized or ingested to prevent or treat deficiency.
• calcification

  nounLow frequency
  /ˌkælsɪfɪˈkeɪʃ(ə)n/The process by which organic tissue becomes hardened by a deposit of calcium salts; figuratively, the process of becoming rigid, inflexible, or fixed in attitudes or procedures.
• calcifuge

  nounVery Low (Technical/Specialist)
  /ˈkælsɪfjuːdʒ/A plant that cannot grow in or avoids soils rich in lime or calcium.
• calcify

  verbverb-ambitransitiveLow/Technical
  /ˈkælsɪfaɪ/to harden or become hard by the deposition of calcium salts; to make rigid or inflexible.
• calcimine

  nounverbverb-transitiveObsolete / Rare / Technical
  /ˈkælsɪmaɪn/A white or pale wash for walls and ceilings, typically made from whiting and glue.
• calcine

  nounverbverb-intransitiveverb-transitiveC2 / Very Rare / Technical
  /ˈkælsaɪn/To heat a substance (especially a mineral or metal) to a high temperature in order to drive off volatile components, cause oxidation, or bring about thermal decomposition without melting.
• calciner

  nounLow (C2+ Technical)
  /ˈkælsɪnə/a person or piece of equipment that subjects materials (like minerals, ores, chemicals, or waste) to intense heat in order to remove volatile substances, moisture, or impurities, or to cause thermal decomposition, typically producing a dry, powdery, or oxidized residue.
• calcinosis

  nounC1/C2 (Very low frequency, technical term)
  /ˌkælsɪˈnəʊsɪs/A medical condition involving abnormal calcium salt deposits in body tissues.
• calciphile

  nounVery Rare (Specialist/Scientific)
  /ˈkælsɪfaɪl/An organism that thrives in or requires limestone-rich or calcareous soils.
• calciphobe

  nounVery Low
  /ˈkælsɪfəʊb/A person who fears or avoids calcium or calcium-rich substances.
• calcite

  nounC2
  /ˈkælsaɪt/A common crystalline form of calcium carbonate (CaCO₃), a mineral found in rocks like limestone and marble.

Showing 421–440 of 13732 words.