prepyramidaladj.

Brit.

/ˌpriːpᵻˈramᵻdl/, U.S.

/ˌpripəˈræməd(ə)l/,

/ˌpripɪrəˈmɪd(ə)l/

Origin: Formed within English, by derivation. Etymons: pre- prefix, pyramidal adj.

Etymology: < pre- prefix + pyramidal adj. (although this is apparently first attested later in the corresponding sense: see pyramidal adj. 3f). Compare prepyramid n.

Anatomy.

Of or relating to the pyramids of the medulla oblongata (cf. prepyramid n.); (also) anterior to a pyramid or to the pyramidal tract.

ΚΠ

1846 R. Owen Lect. Compar. Anat. Vertebr. Animals viii. 174 A narrower median ‘pre-pyramidal’ tract.

1911 Lancet 20 May 1354/2 On one side this change affected the crossed and direct pyramidal and pre-pyramidal tracts.

1933 Lancet 7 Oct. 815/1 In one group there is evidence of damage to the pyramidal or pre-pyramidal motor system.

1990 Brain Res. 519 243 The cells responsive to tactile stimulation were mainly encountered around the prepyramidal fissure between lobules VIIb and VIIIa.

This entry has been updated (OED Third Edition, March 2007; most recently modified version published online March 2022).

单词	prepyramidal
释义	prepyramidaladj. Brit. /ˌpriːpᵻˈramᵻdl/, U.S. /ˌpripəˈræməd(ə)l/, /ˌpripɪrəˈmɪd(ə)l/ Origin: Formed within English, by derivation. Etymons: pre- prefix, pyramidal adj. Etymology: < pre- prefix + pyramidal adj. (although this is apparently first attested later in the corresponding sense: see pyramidal adj. 3f). Compare prepyramid n. Anatomy. Of or relating to the pyramids of the medulla oblongata (cf. prepyramid n.); (also) anterior to a pyramid or to the pyramidal tract. ΚΠ 1846 R. Owen Lect. Compar. Anat. Vertebr. Animals viii. 174 A narrower median ‘pre-pyramidal’ tract. 1911 Lancet 20 May 1354/2 On one side this change affected the crossed and direct pyramidal and pre-pyramidal tracts. 1933 Lancet 7 Oct. 815/1 In one group there is evidence of damage to the pyramidal or pre-pyramidal motor system. 1990 Brain Res. 519 243 The cells responsive to tactile stimulation were mainly encountered around the prepyramidal fissure between lobules VIIb and VIIIa. This entry has been updated (OED Third Edition, March 2007; most recently modified version published online March 2022). < adj.1846
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