an enzyme oxidizing a catechol, with O2, to produce a diphenylenedioxide quinone (for example, 4 catechol + 3O2 → 2 dibenzo[1,4]-2,3-dione + 6H2O).
cat·e·chol ox·i·dase (di·mer·iz·ing)
(kat'ĕ-kol ok'si-dās dī'mĕr-īz-ing) An enzyme oxidizing a catechol, with O2, to a diphenylenedioxide quinone (e.g., 4 catechol + 3O2→ 2 dibenzo[1,4]-2,3-dione + 6H2O).