1. Pertaining to or worked or produced by friction
   "frictional electricity"; "frictional heat"; "frictional gearing"

See also: friction

• send a message
• send around
• send away
• send back
• send down
• send for
• send in
• send on
• send out
• send packing
• send word
• send-off
• sendee
• sender
• Sendero Luminoso
• sending
• sendup
• sene
• Seneca
• Seneca Lake
• Seneca snakeroot
• Senecan
• Senecio
• Senecio aureus
• Senecio bigelovii