[bleech] 
| 1. | to make whiter or lighter in color, as by exposure to sunlight or a chemical agent; remove the color from. |
| 2. | Photography. to convert (the silver image of a negative or print) to a silver halide, either to remove the image or to change its tone. |
| 3. | to become whiter or lighter in color. |
| 4. | a bleaching agent. |
| 5. | degree of paleness achieved in bleaching. |
| 6. | an act of bleaching. |
| bleach (blēch) v. bleached, bleach·ing, bleach·es v. tr.
To become white or colorless. n.
[Middle English blechen, from Old English blǣcan; see bhel-1 in Indo-European roots.] |
| bleach (blēch) Pronunciation Key
A chemical agent used to whiten or remove color from textiles, paper, food, and other substances and materials. Chlorine, sodium hypochlorite, and hydrogen peroxide are bleaches. Bleaches remove color by oxidation or reduction. |