#1
perturbation n. [
disturbance, upset] an unhappy and worried mental state; "there was too much anger and disturbance"; "she didn't realize the upset she caused me"
. wn #2
perturbation n. (physics) a secondary influence on a system that causes it to deviate slightly
. wn #3
perturbation n. [
disturbance] activity that is a malfunction, intrusion, or interruption; "the term 'distress' connotes some degree of perturbation and emotional upset"; "he looked around for the source of the disturbance"; "there was a disturbance of neural function"
. wn #4
perturbation n. [
fluster] a disposition that is confused or nervous and upset
. wn #5
perturbation n. [
disruption] the act of causing disorder
. wn