plural of duffin

(organic chemistry) The polyketide (5S,6R)-1-[(2E,4E,6S)-4,6-dimethylocta-2,4-dienoyl]-5,6-dihydroxy-5-methyl-6,7-dihydro-2-benzofuran-4-one present in the Aspergillus fungus

(countable, sometimes capitalized) A publication containing biographies of well-known or important people. / (countable) A list of notable, famous, or upper-class people.

(music) Having a single metre throughout.