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

• cotton stainer
• cotton strain
• cotton thistle
• cotton up
• cotton wool
• cotton-picking
• cotton-seed tree
• cottonmouth
• cottonmouth moccasin
• cottonseed
• cottonseed cake
• cottonseed oil
• cottontail
• cottontail rabbit
• cottonweed
• cottonwick
• cottonwood
• cottony
• cottony-white
• Cottrell precipitator
• Cottus
• Cotula
• Cotula coronopifolia
• Coturnix
• Coturnix communis