1. A flow that returns toward its source
   - backflow

Type of: flow, flowing

• mezzanine floor
• mezzo
• mezzo-relievo
• mezzo-rilievo
• mezzo-soprano
• mezzotint
• MF
• MFA
• MFLOP
• mg
• mho
• MHz
• mi
• MI 5
• MI 6
• Miami
• Miami Beach
• Miao
• miaou
• miaow
• miasm
• miasma
• miasmal
• miasmic
• miaul