| 1. | an inside or inner seam of a garment, esp. the seam of a trouser leg that runs from the crotch down to the bottom of the leg. |
| 2. | of or pertaining to such a seam: inseam measurements. |
| 3. | (of a pocket) placed at or sewn to an opening in the seam of a garment, usually the side seam, so as to lie completely inside the garment. |