closure principle

[klōzhər]
n.
  1. In psychology, the principle that, when one views fragmentary stimuli forming a nearly complete figure, one tends to ignore the missing parts and perceive the figure as whole.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.