blind·sight 
(blīndsīt′)
(blīndsīt′)n.
The ability of a blind person to sense the presence of a light source.
- orthologous
- orthologue
- orthomolecular
- orthomyxovirus
- orthopaedics
- orthopedic
- orthopedically
- orthopedics
- orthopedist
- orthopsychiatric
- orthopsychiatrical
- orthopsychiatrist
- orthopsychiatry
- orthopteran
- orthopterous
- orthopyroxene
- orthorhombic
- orthoscopic
- orthostatic
- orthotic
- orthotics
- orthotist
- orthotropic
- orthotropically
- orthotropism