definition of
clutter

[1] #1 clutter n. [jumble, muddle, fuddle, mare's nest, welter, smother] a confused multitude of things. wn

[2] #2 clutter v. [clutter up] fill a space in a disorderly way. wn

[3] #3 clutter n. unwanted echoes that interfere with the observation of signals on a radar screen. wn