[sahy-fon-uh-steel, sahy-fuh-nuh-steel]

noun Botany.

a hollow tube of vascular tissue enclosing a pith and embedded in ground tissue.

Origin of siphonostele

First recorded in 1905–10; siphono- + stele
Related formssi·pho·no·ste·lic [sahy-fuh-nuh-stee-lik] /ˌsaɪ fə nəˈsti lɪk/, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for siphonostele



botany the cylinder of conducting tissue surrounding a central core of pith in certain stemsSee also stele (def. 3)
Derived Formssiphonostelic (ˌsaɪfənəˈstiːlɪk), adjective

Word Origin for siphonostele

C19: from siphon + stele
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