(chemistry) any reaction in which two (or more) molecules react with the resulting loss of a molecule of water (or other small molecule); the formal reverse of hydrolysis

Milk that has been reduced and sweetened to the consistency of syrup.

(organic chemistry) A carbon–carbon bond-forming reaction that occurs between two esters or one ester and another carbonyl compound in the presence of a strong base, resulting in a β-keto ester or a β-diketone.

(chemistry) Synonym of Darzens reaction

plural of Darzens condensation

plural of Claisen condensation

plural of ghost condensate

(particle physics) The proposed situation in which a ghost (an excitation of a field with a wrong sign of the kinetic term) acquires a vacuum expectation value, spontaneously breaking Lorentz invariance.

(physics) Any form of matter, such as a solid or liquid, in which there are strong interactions between neighbouring atoms

The intramolecular chemical reaction of diesters with base to give β-ketoesters.