: one of the cytoplasmic strands passing through openings in some plant cell walls and forming connections with adjacent cells

Word History

Etymology

New Latin plasmodesma, from plasma + Greek desmat-, desma bond, from dein to bind — more at diadem

First Known Use

1905, in the meaning defined above

Time Traveler
The first known use of plasmodesma was in 1905

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Cite this Entry

“Plasmodesma.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/plasmodesma. Accessed 8 Jul. 2026.

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