1. The act of obtruding; a thrusting upon others by force or unsolicited; as, the obtrusion of crude opinions on the world 
2. That which is obtruded

Derived forms: obtrusions

• Riemannian geometry
• Riesling
• Riesman
• Rifadin
• rifampin
• rife
• riff
• riffed
• Riffian
• riffle
• riffler
• riffraff
• rifle
• rifle ball
• rifle butt
• rifle grenade
• rifle range
• rifle shot
• riflebird
• rifled
• rifleman
• rifleman bird
• rifler
• rifling
• rift