neutral violet
noun
A dark green crystalline azine dye, C22H24N6·HCl, which forms a violet solution in water or alcohol and is used as a biological stain and acid-base indicator.
Origin
Late 19th century; earliest use found in Thomas E. Thorpe (1845–1925), chemist.
- control officer
- control pad
- control panel
- control point
- control register
- control rod
- control room
- control sequence
- control stick
- control surface
- control theory
- control tower
- control zone
- contronym
- controverse
- controversed
- controversial
- controversialism
- controversialist
- controversiality
- controversially
- controversialness
- controversible
- controversion
- controversional