Index of English words, starting with "pe"

(1) - Perturb (v. t.) To disorder; to confuse.
(2) - Perturb (v. t.) To disturb; to agitate; to vex; to trouble; to disquiet.

(1) - Perturbable (a.) Liable to be perturbed or agitated; liable to be disturbed or disquieted.

(1) - Perturbation (n.) A disturbance in the regular elliptic or other motion of a heavenly body, produced by some force additional to that which causes its regular motion; as, the perturbations of the planets are caused by their attraction on each other.
(2) - Perturbation (n.) The act of perturbing, or the state of being perturbed; esp., agitation of mind.

(1) - Perturbational (a.) Of or pertaining to perturbation, esp. to the perturbations of the planets.

(1) - Perturbative (a.) Tending to cause perturbation; disturbing.