1. The indigestible portion of plant foods that move through the digestive system, absorbing water and making defecation easier
   - dietary fibre [Brit, Cdn]

Encyclopedia: Dietary fiber

• innumerous
• inobservance
• inobservant
• inobtrusive
• Inocor
• inoculant
• inoculate
• inoculating
• inoculation
• inoculator
• inoculum
• inodorous
• inoffensive
• inoffensively
• inoperable
• inoperative
• inopportune
• inopportunely
• inopportuneness
• inordinate
• inordinately
• inordinateness
• inorganic
• inorganic chemistry
• inorganic compound