1. Of or relating to or containing nitrogen
   - nitrogen-bearing

See also: nitrogen

Encyclopedia: Nitrogenous

• irrelevance
• irrelevancy
• irrelevant
• irrelevantly
• irreligion
• irreligionist
• irreligious
• irreligiousness
• irremediable
• irremediably
• irremissible
• irremovable
• irreparable
• irreparably
• irreplaceable
• irreplaceableness
• irrepressibility
• irrepressible
• irrepressibly
• irreproachable
• irreproachably
• irreproducibility
• irreproducible
• irresistibility
• irresistible