from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. comparative form of dull: more dull
  • n. One who, or that which, dulls.

from the GNU version of the Collaborative International Dictionary of English

  • n. One who, or that which, dulls.

from The Century Dictionary and Cyclopedia

  • n. One who or that which makes dull.


Sorry, no etymologies found.



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  • 6.3 What is a duller?—A form of equalizer used to reduce the high-frequency response of an electrical circuit. It is so named because the high-frequency response appears to be dull and lacking in presence.”

    Audio Cyclopedia by Howard M. Tremaine, Howard W. Sams & Co., 1969, pg. 263

    February 4, 2010