| Chr | a brilliant green color |
|---|---|
| Chr | any of a class of green pigments consisting of chrome yellow and iron blue |
| Chr | a red pigment used in paints |
| Chr | yellow pigment consisting of neutral lead chromate |
| Chr | any of several yellow pigments consisting of normal lead chromate and other lead compounds |
| Chr | Elinvar is a trademark for a kind of nickel-chromium steel used for watch springs because its elasticity is constant over a wide range of temperatures |
| Chr | a steel alloy made with chromium and tungsten |
| Chr | a form of synesthesia in which nonvisual stimulation results in the experience of color sensations |
| Chr | an unstable acid known only in solution and as chromate salts |
| Chr | a brownish-black mineral |
| Chr | a hard brittle blue-white multivalent metallic element |
| Chr | steel containing chromium that makes it resistant to corrosion |