Synanthrose \Syn*an"throse"\ (s[i^]n*[a^]n"thr[=o]s), n. [From
NL. Synantherae the Compositae; Gr. sy`n with + 'anqh`ros
blooming.] (Chem.)
A variety of sugar, isomeric with sucrose, found in the
tubers of the Jerusalem artichoke ({Helianthus tuberosus}),
in the dahlia, and other Compositae.
[1913 Webster]