[f. as prec. + -ING2.] That ferments; in senses of the verb.
1697. Dryden, Virg. Georg., II. 10.
| To thee his joys the jolly Autumn owes, | |
| When with fermenting juice the vat oerflows. |
1705. Addison, The Campaign, 108.
| Their Courage dwells not in a troubld Flood | |
| Of mounting Spirits, and fermenting Blood. |
1816. J. Scott, A Visit to Paris in 1814, Preface (ed. 5), iv. In March 1815, the fermenting mischief burst forth, and took a fiery course.
1871. H. W. Taunt, Map of Thames, 15. He bursts out into a hearty roar of laughter, which Ben interprets as an affirmative, and the bung flies upwards from the fermenting beer accordingly.