Definitions

1. noun

a nervous or anxious feeling, especially one caused by caffeine or other stimulants.

“She felt a jitter after drinking too much coffee.”

2. verb

to shake or cause to shake, especially with a trembling or quivering motion.

“The machine was jittering violently as it malfunctioned.”

3. verb

to feel or experience nervous anxiety or unease.

“He was jittering with excitement before the concert.”

4. noun

a small, sudden, irregular movement, especially of a machine or a part of a machine.

“The camera’s shutter had a slight jitter in its movement.”