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Having one flagellum at only one pole or end, as certain bacteria.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(mɒˈnɒtrɪkəs) or


(Microbiology) (of bacteria) having a single flagellum
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
In morphology, these microorganisms are gram-negative, without spore, curved or straight rod, and movable with one or more polar flagellum (monotrichous: having a single polar flagellum.
Bacteria may have a single flagellum at one end (monotrichous), more than one flagellum at one end (lophotrichous), or flagella all over the cell (peritrichous) (Figure 6-9).