achromatic (ˌækrəˈmætɪk) ![]() | |
| —adj | |
| 1. | without colour |
| 2. | capable of reflecting or refracting light without chromatic aberration |
| 3. | cytology |
| a. not staining with standard dyes | |
| b. of or relating to achromatin | |
| 4. | music |
| a. involving no sharps or flats | |
| b. another word for diatonic | |
| 5. | denoting a person who is an achromat |
| achro'matically | |
| —adv | |
| achromatism | |
| —n | |
| achromaticity | |
| —n | |
| an obscure term ostensibly referring to a lung disease caused by silica dust, sometimes cited as one of the longest words in the English language. |
| the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language). |