the GNU version of the Collaborative International Dictionary of English
adj. Containing twelve; twelvefold; increasing by twelves; duodecimal.
The Century Dictionary and Cyclopedia
Relating to the number twelve; twelvefold; increasing by twelves.
In music, pertaining to a duodene, or consisting of duodenes.
n. A musical instrument for acoustical research, played from a keyboard laid out in duodenes.
Word Usage
"Whatever preoperative adjustments Arterton required were a smashing success, as the actress bears almost no resemblance to the duodenary-digited, crumple-eared duckling she was in her youth."