1. A flow that returns toward its source
   - backflow

Type of: flow, flowing

• phonograph needle
• phonograph record
• phonograph recording
• phonograph recording disk
• phonography
• phonolite
• phonologic
• phonologic system
• phonological
• phonological system
• phonologist
• phonology
• phonometer
• phonon
• phonophobia
• phony
• phooey
• Phoradendron
• Phoradendron flavescens
• Phoradendron serotinum
• phoronid
• Phoronida
• Phoronidea
• phosgene
• phosphatase