Source : Webster's Revised Unabridged Dictionary (1913)

Sympodium \Sym*po"di*um\, n.; pl. {Sympodia}. [NL., fr. Gr. sy`n
   with + ?, dim. of ?, ?, foot.] (Bot.)
   An axis or stem produced by dichotomous branching in which
   one of the branches is regularly developed at the expense of
   the other, as in the grapevine.