1. Of black tinged with grey
   - grey-black [Brit, Cdn], greyish-black [Brit, Cdn], grayish-black [US]

See also: achromatic, neutral

• biosynthesis
• biosynthetic
• biosystematic
• biosystematics
• biosystematy
• biota
• biotech
• biotechnological
• biotechnology
• bioterrorism
• biotic
• biotic community
• biotin
• biotite
• biotitic
• biotope
• biotype
• biotypic
• biovular
• bioweapon
• biparous
• bipartisan
• bipartite
• bipartizan
• biped