Definitions

1. noun

A lens or system of lenses used to cancel or neutralize the optical effects of another lens or system, such as a telescopic lens.

“The scientist used an antilens to counteract the effects of the telescope’s lens.”

2. noun

A device used to neutralize the effects of another optical system, often in the context of telescopes or binoculars.

“The antilens was designed to cancel out the distortions caused by the telescope’s lens.”