1. Of the colour of slate or granite
   - slate-gray [US], slaty-grey [Brit, Cdn], slaty-gray [US], slaty, slatey, stone-grey [Brit, Cdn], stone-gray [US]

See also: achromatic, neutral

• Ochna
• ochna family
• Ochna serrulata
• Ochnaceae
• Ochoa
• polycarpic
• polycarpous
• Polychaeta
• polychaete
• polychaete worm
• polychete
• polychete worm
• polychlorinated biphenyl
• polychromatic
• polychrome
• polychromic
• polychromise
• polychromize
• polychromy
• Polycillin
• Polycirrus
• polyclinic
• polyconic projection
• polycotyledon
• polycrystalline