(medicine) Pupils which narrow to track an object as it approaches the face, but which will not narrow in reaction to increased light ("accommodating, but not reactive"); a symptom of the neurosyphilis stage syphilis infection.

(pathology) A bilateral small pupil of the eye that reduces in size when the patient focuses on a near object but does not constrict when exposed to bright light. It is a sign of neurosyphilis.

(Scotland) Said in response to a person shrugging their shoulders.