Nodule
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A '''nodule''' describes an aggregation of similar cells or particles in a number of scientific fields:
*[[Nodule (geology)]], a small knobbly rock or [[mineral]] cluster, such as a [[manganese nodule]]
*[[Nodule (medicine)]], a small aggregation of [[cell (biology)|cell]]s
*[[Root nodule]], an outgrowth formed on the roots of [[legume]]s that house [[symbiotic]] bacteria that [[nitrogen fixation|fix atmospheric nitrogen]] and provide it to the plant in exchange for carbon
{{disambig}}
[[es:NĂ³dulo]]
[[fr:Nodule]]