Relating to or derived from peanuts or groundnuts, particularly their chemical composition.
From Greek 'arachis' (peanut plant) + Latin suffix '-ic' (relating to). The term emerged in 19th-century chemistry when scientists began analyzing peanut oil compounds.
Arachic acid, found in peanut oil, was one of the first fatty acids chemists could isolate and study, making peanuts surprisingly important to the development of modern chemistry!
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