[{"word":"perturbation","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"Agitation; the state of being perturbed","synonyms":[],"antonyms":[]},{"definition":"A small change in a physical system, or more broadly any definable system (such as a biological or economic system)","synonyms":[],"antonyms":[]},{"definition":"Variation in an orbit due to the influence of external bodies","synonyms":[],"antonyms":[]}],"synonyms":[],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/perturbation"]}]