mul·ti·flo·ra rose (m?l?t?-flôr??)n. A climbing or sprawling shrub (Rosa multiflora) native to East Asia, having clusters of small fragrant flowers. It was used as a rootstock for many horticultural varieties and is weedy in North America.[Partial translation of New Latin Rosa multifl?ra, species name : Latin rosa, rose + Late Latin multifl?ra, feminine of multifl?rus, multiflorous (Latin multi-, multi- + Latin fl?s, fl?r-, flower; see Flora).]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.multiflora rose (?m?lt??fl??r?) n (Plants) an Asian climbing shrubby rose, Rosa multiflora, having clusters of small fragrant flowers: the source of many cultivated rosesCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014mul?tiflo?ra rose? n. a climbing or trailing rose, Rosa multiflora, having fragrant, dense clusters of flowers. [1820?30; multiflora