isoenzyme

noun

Etymology: Etymology tree Ancient Greek ῐ̓́σος (ĭ́sos)lbor. English iso- English enzyme English isoenzyme From iso- + enzyme.

1. Any of a group of enzymes that catalyze the same reaction but have structures that are (minorly or substantially) different and have physical, biochemical, and immunological properties that are (minorly or substantially) different.

   “Near-synonym: allozyme”