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plas·mo·des·ma | \ ˌplaz-mə-ˈdez-mə 
\
\variants:
or less commonly plasmodesm \ ˈplaz-mə-ˌde-zəm \
\ plural plasmodesmata\ ˌplaz-mə-ˈdez-mə-tə \ or plasmodesmas\ ˌplaz-mə-ˈdez-məz \
\ or plasmodesmas\ ˌplaz-mə-ˈdez-məz \Definition of plasmodesma
: one of the cytoplasmic strands passing through openings in some plant cell walls and forming connections with adjacent cells
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The first known use of plasmodesma was in 1905
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