nodule

(redirected from nodulation)
Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to nodulation: Root nodules

nodule:

see concretionconcretion,
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.
..... Click the link for more information.
.

nodule

[′näj·ül]
(anatomy)
A small node.
A small aggregation of cells.
(botany)
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.
(geology)
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.
(medicine)
A primary skin lesion, seen as a circumscribed solid elevation.

nodule

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
References in periodicals archive ?
Bacteria with specialized nodulation phenotypes similar to these isolates occur at high frequency in some sites (Spoerke et al.
This result may be at least partially attributed to the more favorable conditions for nodulation at the former, which had a pH more acid and higher phosphorus and organic matter concentrations than the values obtained in Pitangui (Table 1), likely favoring an increased availability of Mo in the soil.
Population density-dependent regulation of the Bradyrhizobium japonicum nodulation genes.
There was no nodulation observed in uninoculated control plants.
Nodulation and associated parameters Phosphorus based treatment outstandingly (p<0.
The objectives of this work were to: (i) survey nodulation and growth of M.
3: The predominant pattern of involvement on HRCT was diffuse miliary nodulation ranging from 1-3 mm in size in all patients.
Additionally, concentrations of N surrounding soybean roots can delay or impede nodulation (Harper and Gibson, 1984; Gibson and Harper, 1985), and thus reduce [N.
In addition to binding endogenous estrogens, ERs also bind phytoestrogens, an ability shared in common with nodulation D protein (NodD) receptors found in Rhizobium soil bacteria.