We don't have synonyms for vicine yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are picine, vicing and vicini.
(n) :
(organic chemistry) An alkaloid extracted from the seeds of the vetch (Vicia sativa), as well as other species of Vicia. It is a white crystalline substance.
(n) :
(organic chemistry) An alkaloid extracted from the seeds of the vetch (Vicia sativa), as well as other species of Vicia. It is a white crystalline substance.