A collection of rays
One Word SubstitutionsHARD
Pencil
A collection of rays
One Word SubstitutionsHARD
Pencil
Learning Progress
Examples
"In optics a pencil of rays describes a bundle used in imaging systems."
"The technician adjusted the lens to focus a pencil of rays onto the sensor."
Source: One Word SubstitutionsAdded: 11/13/2025
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