nodule(redirected from Bohn's nodules)
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Related to Bohn's nodules: thrush, dental lamina cyst
mass or nodule of mineral matter, usually oval or nearly spherical in shape, and occurring in sedimentary rock. It is formed by the accumulation of mineral matter in the pore spaces of the sediment, usually around a fossil or fossil fragment acting as a nucleus.
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A small node.
A small aggregation of cells.
A bulbous enlargement found on roots of legumes and certain other plants, whose formation is stimulated by symbiotic, nitrogen-fixing bacteria that colonize the roots.
A small, hard mass or lump of a mineral or mineral aggregate characterized by a contrasting composition from and a greater hardness than the surrounding sediment or rock matrix in which it is embedded.
A primary skin lesion, seen as a circumscribed solid elevation.
1. any of the knoblike outgrowths on the roots of clover and many other legumes: contain bacteria involved in nitrogen fixation
2. Anatomy any small node or knoblike protuberance
3. a small rounded lump of rock or mineral substance, esp in a matrix of different rock material