perturbation
perturbation
Definition
per·tur·ba·tion (pʉr′tər bā′s̸hən)
noun
- a perturbing or being perturbed
- something that perturbs; disturbance
- Astron. a small change in an orbit caused by the attraction of another celestial body, other bodies, etc.
Etymology: ME < MFr perturbacion < L perturbatio
per′·tur·ba′·tional adjective or per′·tur·ba′·tive
perturbation
Synonyms
perturbation
Usage Examples
Converse of object
- induce: The resonant frequency can thus be tuned or even switched depending on the amount of perturbation induced in the electric or magnetic fields.
- apply: Without applying external perturbations at the inflow boundary, large vortical structures develop naturally in the flow field due to buoyancy effects.
- introduce: In [ 6 ] we gave a way of handling " negative resonances " by introducing a first order perturbation.
Adjective modifier
- gravitational: Resonance A state in which an orbiting object is subject to periodic gravitational perturbations by another.
- hormonal: Neeck G, Neuroendocrine and hormonal perturbations and relations to the serotonergic system in fibromyalgia patients.
- atmospheric: In these exposures the atmospheric phase perturbations are compensating for the errors in the figure of the telescope mirror.
- singular: Subtle exponentially small effects result from singular perturbations implicit in certain multiple time scale systems.
- random: The idea is to take advantage of what a random perturbation of the representative phase point would do to the evolution of a system.
- magnetic: These two models can be distinguished by considering the ratio of the magnetic field perturbation to the electric field.
Modifies a noun
- theory: We are developing a perturbation theory to account for these effects.
- calculation: Restrictions: Bands involved in resonances, where a perturbation calculation is required, may not be calculated with the program.
- expansion: Several steps of our perturbation expansion can be based on rigorous arguments.
- experiment: The animations illustrate this process for an idealized perturbation model experiment in the North Atlantic.
- method: Use perturbation methods to estimate error of pendulum clock.
Noun used with modifier
- many-body: The density of states at the surface is calculated within the GW approximation of many-body perturbation theory.
- tensor: The probability for the tensor perturbations will peak at order ten to the minus eight.
- density: A binary system forms first from an initial m=2 density perturbation in the cloud.
- phase: In these exposures the atmospheric phase perturbations are compensating for the errors in the figure of the telescope mirror.
- shift: Generally, however, there is no correlation with either native state shift perturbations or with sequence proximity to aromatic groups.
- parameter: Initial runs with a " slab " ( thermodynamic ocean ) version will help prioritize parameter perturbations.
Browse dictionary entries near perturbation
- perturb
- pertness
- pertinent
- pertinence
- pertinacity
- pertinacious
- Perth
- pertaining
- pertain
- pert
