optical
adjective /ˈɒptɪkl/
/ˈɑːptɪkl/
[usually before noun]- connected with the sense of sight or the relationship between light and sight
- optical effects
- used to help you see something more clearly
- optical aids
- optical instruments such as microscopes and telescopes
- (computing) using light for reading or storing information
- optical storage
- an optical disk/drive/mouse