1. Of or relating to a summation or produced by summation
   - summational

See also: additive

Encyclopedia: Summative

• airheaded
• airily
• airiness
• airing
• airing cupboard
• airless
• airlift
• airlike
• airline
• airline business
• airliner
• airlock
• airmail
• airmail letter
• airmailer
• airman
• airmanship
• airpark
• airplane
• airplane landing
• airplane maneuver
• airplane manoeuvre
• airplane mechanics
• airplane pilot
• airplane propeller