IPA: /kæˈtɒprɪk/
KK: /kæˈtɒprɪk/
Relating to mirrors and the images they reflect, or using mirrors to direct light.
The catoptric system in the telescope allows for clearer images of distant stars.
Catoptric is formed from "katoptrikos" (meaning pertaining to reflection) derived from the Greek "katoptrizō" (meaning to reflect) and the suffix "-ic" (meaning pertaining to). The word describes something related to the reflection of light, particularly in optics.
Think of the Greek word for reflection ('katoptrizō') to remember that 'catoptric' relates to the reflection of light.