perturb : Dictionary / Wörterbuch (BEOLINGUS, TU Chemnitz)

English Dictionary: perturb	by the DICT Development Group
2 results for perturb
From WordNet (r) 3.0 (2006) [wn]:
perturb v disturb in mind or make uneasy or cause to be worried or alarmed; "She was rather perturbed by the news that her father was seriously ill" Synonym(s): perturb, unhinge, disquiet, trouble, cark, distract, disorder disturb or interfere with the usual path of an electron or atom; "The electrons were perturbed by the passing ion" cause a celestial body to deviate from a theoretically regular orbital motion, especially as a result of interposed or extraordinary gravitational pull; "The orbits of these stars were perturbed by the passings of a comet" throw into great confusion or disorder; "Fundamental Islamicists threaten to perturb the social order in Algeria and Egypt" Synonym(s): perturb, derange, throw out of kilter
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Perturb \Perturb"\, v. t. [L. perturbare, perturbatum; per + turbare to disturb, fr. turba a disorder: cf. OF. perturber. See {Per-}, and {Turbid}.] 1. To disturb; to agitate; to vex; to trouble; to disquiet. Ye that . . . perturb* so my feast with crying. --Chaucer. 2. To disorder; to confuse. [R.] --Sir T. Browne.