1. Concave on both sides
   - biconcave

See also: concave

• consume
• consumer
• consumer credit
• consumer durables
• consumer finance company
• consumer goods
• consumer loan
• consumer price index
• consumer research
• consumerism
• consuming
• consummate
• consummated
• consummately
• consummation
• consummative
• consumption
• consumption weed
• consumptive
• cont.
• contact
• contact action
• contact arm
• contact dermatitis
• contact lens