[clut.ter] vb [ME clotteren to clot, fr. clot] vi (1556) chiefly dial: to run in disorder ~ vt: to fill or cover with scattered or disordered things that impede movement or reduce effectiveness--often used with up
[2]clutter n (1649) 1 a: a crowded or confused mass or collection b: things that clutter a place
2: interfering radar echoes caused by reflection from objects (as on the ground) other than the target 3 chiefly dial: disturbance, hubbub