(philosophy) The proposition that scientific theories, and any other claims to knowledge, can and should be rationally criticized, and, if they have empirical content, can and should be subjected to tests which may falsify them.

(physics) The angle of incidence beyond which light traveling through a medium experiences total internal reflection upon encountering a boundary with a less refractive medium.

plural of critical angle

(literature) The study, discussion, evaluation, and interpretation of literature.

Of a system: capable of causing death if it fails or malfunctions.

Of a system: capable of causing serious injury or damage if it fails or malfunctions.

(insurance) Insurance that pays out a lump sum benefit on the diagnosis of a serious (life-threatening) illness in the life assured within the term of the policy, and nothing on death or healthy survival to the end of the term.

A Kantian approach to philosophy, in which the primary purpose is not to establish and demonstrate theories about reality, but rather to subject all theories to critical review.

plural of armchair critic

A person who makes criticisms on a subject they have little knowledge of or practical experience in.