1. A flow that returns toward its source
   - backflow

Type of: flow, flowing

• Sazerac
• Sb
• SBA
• SbE
• SbW
• Sc
• scab
• scabbard
• scabbed
• scabbiness
• scabby
• scabicide
• scabies
• scabiosa
• Scabiosa arvensis
• Scabiosa atropurpurea
• scabious
• scablands
• scabrous
• scad
• scads
• scaffold
• scaffolding
• scag
• scagliola