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n. pl. pu·tam·i·na (-tăm′ə-nə)
1. The hard endocarp of certain fruits; pyrene.
2. The reddish, outermost, and largest of the three portions into which the lentiform nucleus of the brain is divided.

[Latin putāmen, that which falls off in pruning, shell, husk, from putāre, to prune; see pau- in Indo-European roots.]


n, pl -tamina (-ˈtæmɪnə)
(Botany) the hard endocarp or stone of fruits such as the peach, plum, and cherry
[C19: from Latin: clippings, from putāre to prune]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.putamen - the outer reddish part of the lenticular nucleus
basal ganglion - any of several masses of subcortical grey matter at the base of each cerebral hemisphere that seem to be involved in the regulation of voluntary movement
lenticular nucleus, lentiform nucleus - a basal ganglion shaped like a lens and including the outer reddish putamen and the inner pale yellow pallidum
References in periodicals archive ?
5 In MSA-P the degenerative changes predominantly affect the basal ganglia, particularly the putamen seen as hyperintense rim at the putaminal edge, atrophy and hypointensity of putaminal body on T2WI while in MSA-C changes predominantly affect infratentorial structures like pons and cerebellum, seen as atrophy and hyperintense signals in pons, cerebellum and middle cerebellar peduncles with pontine hyperintensity (hot cross bun sign) on axial image,4 which was seen in both of our patient's MRI.
A significant association was found between plasma ApoA1 and putaminal dopamine transporter (DAT) uptake, and it was also confirmed that lower ApoA1 level was related with more severe DAT deficit, even adjusting the confounding factor.
An MRI brain scan showed left-sided caudate head and anterior putaminal high signal.
Alcohol is a risk factor not for thalamic but for putaminal hemorrhage:The Akita Stroke Registry.
The aim of this study is to assess the clinical efficacy of minipterional craniotomy in the treatment of hypertensive putaminal hemorrhage (HPH).
Transplantation of fetal dopamine neurons in Parkinson's disease: PET [18F]6-L-fluorodopa studies in two patients with putaminal implants.
moderate hemiparesis, hemiplegia are frequent in patients with putaminal, putamino-capsular, thalamic, frontal, parietal hemorrhage (89% cases with supratentorial hemorrhage)
A lenticulostriate isolated ischemic stroke can lead to a mismatch effect of false high signal on putaminal region.
Baseline cranial CT revealed a left putaminal hematoma (28 cc) (Figure 1a).
Putaminal abnormalities may be present in MSA-P patients MRI, other findings include hypo intense sign of the putamen with marginal hyper intense sign in T2.
The most characteristic MR findings in methanol toxicity are bilateral putaminal necroses, which may have varying degrees of hemorrhage.
Progression of putaminal degeneration in multiple system atrophy: A serial diffusion MR study.