1. to make someone worried, upset, or anxious
2. to cause a small change in the motion or position of something
Usage: scientific

Examples

• The loud noise seemed to perturb the sleeping baby.
• News of the layoffs perturbed the entire staff.
• She was perturbed by his sudden change in behavior.
• The asteroid’s gravity could perturb the satellite’s orbit.
• Nothing could perturb his usual calm demeanor.
• The unexpected question perturbed the witness during testimony.
• Solar wind can perturb Earth’s magnetic field.