definition from
Oxford Dictionary of English – https://play.google.com/store/apps/details?id=com.mobisystems.msdict.embedded.wireless.oxford.dictionaryofenglish

enzyme /ˈɛnzʌɪm /
▸ noun Biochemistry a substance produced by a living organism which acts as a catalyst to bring about a specific biochemical reaction.
Most enzymes are proteins with large complex molecules whose action depends on their particular molecular shape. Some enzymes control reactions within cells and some, such as the enzymes involved in digestion, outside them.
enzymatic /ɛnzʌɪˈmatɪk/ adjective
enzymic /ɛnˈzʌɪmɪk/ adjective
– ORIGIN late 19th century : coined in German from modern Greek enzumos ‘leavened’, from en- ‘within’ + Greek zumē ‘leaven’.