| ACh | an inherited skeletal disorder beginning before birth |
|---|---|
| ACh | tropical trees having papery leaves and large fruit |
| ACh | large tropical American evergreen yielding chicle gum and edible fruit |
| ACh | unnatural lack of color in the skin (as from bruising or sickness or emotional distress) |
| ACh | having no hue |
| ACh | being of the achromatic color of maximum darkness |
| ACh | being of the achromatic color of maximum lightness |
| ACh | a color lacking hue |
| ACh | a color lacking hue |
| ACh | a compound lens system that forms an image free from chromatic aberration |
| ACh | vision using the rods |
| ACh | the part of a cell nucleus that is relatively uncolored by stains or dyes |