1. Related to or along a diameter
   - diametral, diametric 
2. Characterized by opposite extremes; completely opposed
   "diametrical points of view"
   - diametric, opposite, polar

See also: diameter, different

• coating
• coatrack
• coatroom
• Coats Land
• coattail
• coattails effect
• coauthor
• coax
• coax cable
• coaxal
• coaxer
• coaxial
• coaxial cable
• coaxing
• coaxingly
• cob
• cobalamin
• cobalt
• cobalt 60
• cobalt bloom
• cobalt blue
• cobalt ultramarine
• cobaltic
• cobaltite
• cobber