perturbation

«perturbation» in Mova's school dictionary: Worry or anxiety; being upset: "She showed no perturbation." — its meaning for a pupil, its sense in the lessons and examples.

part of speech

noun (a perturbation, perturbations)

meaning for a pupil

1) (formal) Worry or anxiety; being upset: "She showed no perturbation." tree →

2) (science) A small change or disturbance in the movement or state of something, such as a planet's orbit being pulled by another planet. tree →

sense in the lessons

In science and astronomy, perturbations in Uranus's orbit led astronomers to discover Neptune in 1846. In maths and physics, a perturbation is a small push or change. In old-fashioned stories, it means worry.

examples

• Small perturbations in Uranus's orbit helped find Neptune. tree →
• He listened without any sign of perturbation. tree →
• The spacecraft corrected for perturbations in its path. tree →
• A tiny perturbation can change the weather a lot. tree →
• Her perturbation grew as the dog did not come home. tree →
• Scientists measured the perturbation caused by the moon. tree →

note

Formal. Verb: perturb (to worry); adjective: perturbed (worried), unperturbed (calm). In science it means a small disturbance, not a big crash.

Trees and pragmatics

Every meaning and example of «perturbation» parsed by Mova, each sentence with its dependency tree and frames.