[doo-uh-deen-l, dyoo-; doo-od-n-uh l, dyoo-]
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Origin of duodenal

First recorded in 1835–45; duoden(um) + -al1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for duodenal

Historical Examples of duodenal

Word Origin and History for duodenal

1817; see duodenum + -al (1).

Online Etymology Dictionary, © 2010 Douglas Harper