a brand of tungsten carbide compound used for dies, cutting tools, and wearing surfaces.
carboluria carboluria car·bo·lu·ri·a (kär’bə-lur’ē-ə) n. The presence of phenol in the urine. Historical Examples One of the first symptoms noticed from such absorption is irritation of the urinary tract and carboluria. Surgery, with Special Reference to Podiatry Maximilian Stern
Chemistry. a widely distributed element that forms organic compounds in combination with hydrogen, oxygen, etc., and that occurs in a pure state as diamond and graphite, and in an impure state as charcoal. Symbol: C; atomic weight: 12.011; atomic number: 6; specific gravity: (of diamond) 3.51 at 20°C; (of graphite) 2.26 at 20°C. carbon dioxide […]
the isotopic carbon atom that comprises 99 percent of naturally occurring carbon, and that since 1961 has been used as the standard for atomic weight by representing a unit of 12.00000. carbon 12 A stable isotope of carbon, having six protons and six neutrons in the nucleus. Carbon 12 makes up most naturally occurring carbon.
the stable isotope of carbon having an atomic mass number 13, used as a tracer.