: a genus of mostly American weedy herbs of the family Rubiaceae with opposite leaves and small tubular solitary axillary flowers see buttonweed sense 1

Word History


New Latin, from Greek diodos thoroughfare (from dia- + hodos way) + New Latin -ia; from the frequent growth of these plants by the wayside

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Cite this Entry

“Diodia.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Diodia. Accessed 24 Apr. 2024.

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