the failure of light rays to converge at the same focal point because of the curvature of a lens. See also astigmatism.

a b c d e f g h i j k l m n o p q r s t u v w x y z

February 17th 2025

speculation

1. conjectural thinking that is not necessarily supported by scientifically determined evidence.

2. a loosely supported theory or explanation. —speculative adj.