- perturbation theory,
- pertussis immune globulin
Origin of perturbation
Examples from the Web for perturbation
Say your portfolio is worth a third less than before this recession or crash or perturbation or whatever you want to call it.
His volubility increased with his perturbation, and then he drank excessively and sang Dixie.A Rebel War Clerk's Diary at the Confederate States Capital|John Beauchamp Jones
Nor was my perturbation decreased by the reëntrance of the lookout some half hour after he had gone out.More Tish|Mary Roberts Rinehart
It was almost impossible to read or work with her mind in such a state of perturbation.The Secret of the Storm Country|Grace Miller White
You may easily conceive my astonishment and perturbation when I was told that the emperor desired to speak with me immediately.Frederic Shoberl Narrative of the Most Remarkable Events Which Occurred In and Near Leipzig|Frederic Shoberl (1775-1853)
For a moment Guillaume appeared to notice the other's perturbation, by the embarrassed answers which he obtained from him.The Three Cities Trilogy, Complete|Emile Zola
late 14c., from Old French perturbacion "disturbance, confusion" (14c.) and directly from Latin perturbationem (nominative perturbatio) "confusion, disorder, disturbance," noun of action from past participle stem of perturbare (see perturb).