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Definition of: dichasium
(dī·kā′zhē·əm, -zē·əm) noun plural ·si·a (-zhē·ə, -zē·ə) Bot.
A cymose inflorescence in which two lateral branches grow from the primary axis below the flower, each branch repeating the division; a two–parted cyme. [<NL <Gk. dichasis a division <dicha in two]
—di·cha′si·al adjective
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