kæfɪˈnaɪzəm

Definitions

1. noun

a condition caused by excessive consumption of caffeine, marked by symptoms such as anxiety, jitteriness, and insomnia.

“Her caffeinism worsened after switching to a high-caffeine energy drink.”

2. noun

a state of physical or mental overstimulation due to excessive caffeine consumption.

“After downing an entire pot of coffee, he was in a severe state of caffeinism.”