a line of verse of one measure or foot.
Origin of monometer
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Examples from the Web for monometer
In like manner we have anapestic lines of all lengths from monometer to hexameter.Elementary Guide to Literary Criticism|F. V. N. Painter
prosody a line of verse consisting of one metrical foot
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012