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

• pitter-patter
• Pittidae
• pitting
• Pittsburgh
• Pittsburgh of the South
• Pittsfield
• pitty-pat
• pitty-patty
• pituitary
• pituitary body
• pituitary dwarf
• pituitary gland
• Pituophis
• Pituophis melanoleucus
• pity
• pityingly
• Pitymys
• Pitymys pinetorum
• pityriasis
• pityriasis alba
• pityriasis rosea
• Pityrogramma
• Pityrogramma argentea
• Pityrogramma calomelanos
• Pityrogramma calomelanos aureoflava