Noun

1. The place where the optic nerve attaches to the retina, and so where the retina cannot detect light.
2. In driving, the part of the road that cannot be seen in the rear-view mirror.

   When he changed lanes, he sideswiped a car that was in his blind spot.

3. An inability to recognize a fact or think clearly about a certain topic, especially because of a prejudice.

   He loves her so much that he has a blind spot when it comes to her faults.

4. A location where radio reception and/or transmission is significantly poorer than in surrounding locations.