Home › Words › P › phytoglucanphytoglucanphytoglucan · noun — any glucan of plant origin.Definition from Wiktionary (CC BY-SA 3.0).Among words judged in Lexicurio's Arena, phytoglucan ranks #31,278 of 43,295 for Qualifying.EtymologyFrom phyto- + glucan.nounAny glucan of plant originDefinitions & examples from Wiktionary (CC BY-SA 3.0).