Webster's Revised Unabridged Dictionary · 1913

Eclampsia

Eclampsia , noun

[New Latin, from Greek {not transcribed} a shining forth, from {not transcribed} to shine forth; {not transcribed} out + {not transcribed} to shine.]

(Medicine) A fancied perception of flashes of light, a symptom of epilepsy; hence, epilepsy itself; convulsions.

The term is generally restricted to a convulsive affection attending pregnancy and parturition, and to infantile convulsions.