1. Incidentally; in the course of doing something else
   "he made this remark in passing"
   - en passant

Encyclopedia: In passing

• Edecrin
• edelweiss
• edema
• edematous
• Eden
• Edenic
• non-buoyant
• non-cash expense
• non-Catholic
• non-Christian priest
• non-dairy
• non-dedicated file server
• non-destructive
• non-discrimination
• non-dom
• non-engagement
• non-Euclidean geometry
• non-finite
• non-flowering plant
• non-food
• non-insulin-dependent diabetes
• non-insulin-dependent diabetes mellitus
• non-invertible
• non-involvement
• non-ionic detergent