Nucleophilic elimination is a chemical reaction where a nucleophile attacks a substrate, leading to the removal of a leaving group and the formation of a double bond. This process typically occurs in organic compounds, where the nucleophile can be a negatively charged ion or a neutral molecule that donates an electron pair. In this reaction, the nucleophile often targets a carbon atom that is bonded to a leaving group, such as a halide. The result is the formation of an alkene, which is characterized by a carbon-carbon double bond. This type of reaction is important in organic synthesis and is related to concepts like nucleophiles and leaving groups.