Also found in: Medical.
1. Having the eyes wide-open, as in infatuation, wonder, or grief: "Didn't she have a hundred moon-eyed ninnies after her in Texas?" (Zane Grey).
2. Able to see well at night.
1. having the eyes open wide, as in awe
2. (Veterinary Science) vet science affected with moon blindness
having the eyes open wide, as in fear or wonder.