"Old Yellow Enzyme" is a specific name for the enzyme that belongs to the class of oxidoreductases. It is commonly known as "flavoenzyme" due to its use of flavin as a cofactor. Alternative synonyms for "Old Yellow Enzyme" include "flavin-dependent oxidoreductase" and "oxidoreductase flavoprotein". Additionally, it is also referred to as "oxidative-yellow protein" or even simply as "OYE", an acronym for its full name. This versatile enzyme has found applications in various fields, from industrial biotechnology to pharmaceutical synthesis. Understanding the diverse terminologies associated with "Old Yellow Enzyme" aids in efficient communication and research endeavors involving this intriguing protein.