A short animated GIF used to convey one's physical or emotional response to someone or something on the Internet.

plural of Horner-Wadsworth-Emmons reaction

(molecular biology) A technique in molecular biology for creating multiple copies of DNA from a sample; used in genetic fingerprinting etc.

(chemistry) a reaction in which a single electron is transferred from one molecule to another; one being oxidized and the other reduced (also known as a redox reaction); long-range electron transfer reactions are important in biological reactions involving metalloproteins such as haemoglobin

(organic chemistry) The cycloaddition reaction between a conjugated diene and an alkene to form a cyclohexene ring.

(chemistry) a substitution reaction in which an alkyl or acyl functional group replaces a hydrogen atom of an aromatic nucleus; it is catalyzed by aluminium chloride

A chemical reaction involving a change of chemical bonds, so that two compounds become two different compounds, in the form AB+CD→AD+CB

A chemical reaction involving a change of chemical bonds, so that two compounds become two different compounds, in the form AB+CD→AC+BD

(medicine) An aggressive behaviour sometimes manifested by patients taking certain drugs, such as benzodiazepines.

(chemistry) An organic cheletropic chemical reaction in which a carbenoid reacts with an alkene (or alkyne) to form a cyclopropane.