plexiformadj.

Brit.

/ˈplɛksᵻfɔːm/, U.S.

/ˈplɛksəˌfɔrm/

Origin: Formed within English, by compounding; modelled on a French lexical item. Etymons: plexus n., -iform comb. form.

Etymology: < plexus n. + -iform comb. form, after French plexiforme (1732 in the source translated in quot. 1733 at main sense). Compare post-classical Latin plexiformis (1741 or earlier).

Anatomy.

Of the form of a plexus; forming a plexus or plexuses.

ΘΚΠ

the world > life > the body > bodily substance > fibre > [adjective] > network of

reticular1578

plexiform1733

plexicose1848

plexal1851

1733 G. Douglas tr. J. B. Winslow Anat. Expos. Struct. Human Body II. 66 This Ramus Lingualis, a little after its Origin, communicates with the Trunk by a short collateral Branch which is sometimes Plexiform.

1765 Philos. Trans. 1764 (Royal Soc.) 54 184 We may justly infer the plexiform unions of the nerves distributed to the superior extremities not more intimate, nor to serve any such purpose as Ganglions.

1830 R. Knox tr. H. Cloquet Syst. Human Anat. 463 Of these portions the outer and larger, which is plexiform, triangular and flattened, comes from the Gasserian ganglion.

1856 R. B. Todd & W. Bowman Physiol. Anat. II. 81 In the cochlea of the bird..we have seen at one end a plexiform arrangement of nucleated fibres ending in loops.

1900 Brit. Med. Jrnl. No. 2040. 248 Its papilla is covered with a plexiform mesh of dilated vessels.

1950 G. P. Wright Introd. Pathol. xxvii. 479 Striking examples of the vascular hamartomas may be seen in the simple, cavernous, or more complicated plexiform, overgrowths of blood vessels that form congenital nævi, birth-marks,..or vascular warts.

1970 Jrnl. Ultrastruct. Res. 33 (title) Ultrastructure and cytochemistry of an extensive plexiform surface coat on the midgut cells of a fulgorid insect.

2004 Cardiovascular Pathol. 13 (Suppl. 1) S193/1 This is the first report of an animal model of PH [= pulmonary hypertension] that includes the plexiform lesions seen in human disease.

Compounds

plexiform layer n. [after French couche plexiforme (externe, interne) (S. Ramón y Cajal 1893, in La Cellule 9 132)] either of the two layers of the retina separated by the inner nuclear layer, the outer one containing synapses between the rods and cones and the neurons of the nuclear layer, and the inner one containing synapses between these neurons and ganglion cells; also called molecular layer.

ΘΚΠ

the world > life > the body > sense organ > sight organ > parts of sight organ > [noun] > retina > layers of

Jacob's membrane1842

plexiform layer1856

molecular layer1867

pigment epithelium1872

pigment layer1872

1856 Quain's Elements Anat. (ed. 6) III. iii. 40 (heading) Inner molecular or inner plexiform layer, neurospongium.

1911 Ophthalmoscope 9 437 The external plexiform layer remains very narrow.

1942 W. J. S. Krieg Functional Neuroanat. xi. 170 The external horizontal cells lie immediately above the layer of bipolar cells, and just external to the outer plexiform layer.

2000 Proc. National Acad. Sci. U.S.A. 97 11489/2 Tissue sections were chosen where the photoreceptor outer segments and Müller cell processes crossing the inner plexiform layer were continuous in the plane of section.

plexiform neurofibroma n. Pathology a neurofibroma that is a mass of tortuous cords of tissue, typically seen in neurofibromatosis.

ΚΠ

1878 tr. T. Billroth Lect. Surg. Pathol. & Therapeutics II. 373 Sometimes nerve-fibromata follow the nerve trunks and form knotty cords (plexiform neurofibroma).

1991 Acta Neuropathologica 81 491/1 Neurofibromatosis type 1..is characterized by the focal accumulation of Schwann-like cells..to form subcutaneous and plexiform neurofibromas and schwannomas.

2005 Guardian 15 Feb. ii. 9/1 Disfigurement can also be caused by dermal neurofibromas, bumplike tumours under the skin, and plexiform neurofibromas, disfiguring tumours which, rooted in nerves and muscles, are difficult to remove.

plexiform neuroma n. [after French névrome plexiforme (A. Verneuil 1861, in Arch. gén. de méd. 2 550)] Pathology (now rare) a plexiform neurofibroma.

ΚΠ

1886 Lancet 22 May 973/2 Reference was made to some observations of Rindfleisch and of Czerny on plexiform neuroma.

1938 Amer. Jrnl. Surg. 39 27/1 In certain plexiform neuromas of neck, back, eyelid and face, the elongated, nodular and contorted nerve trunks show preservation of nerve fibers.

2003 Mutation Res. 543 126/2 Plexiform neuromas, especially those present at birth, are frequently very disfiguring.

This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).

单词	plexiform
释义	plexiformadj. Brit. /ˈplɛksᵻfɔːm/, U.S. /ˈplɛksəˌfɔrm/ Origin: Formed within English, by compounding; modelled on a French lexical item. Etymons: plexus n., -iform comb. form. Etymology: < plexus n. + -iform comb. form, after French plexiforme (1732 in the source translated in quot. 1733 at main sense). Compare post-classical Latin plexiformis (1741 or earlier). Anatomy. Of the form of a plexus; forming a plexus or plexuses. ΘΚΠ the world > life > the body > bodily substance > fibre > [adjective] > network of reticular1578 plexiform1733 plexicose1848 plexal1851 1733 G. Douglas tr. J. B. Winslow Anat. Expos. Struct. Human Body II. 66 This Ramus Lingualis, a little after its Origin, communicates with the Trunk by a short collateral Branch which is sometimes Plexiform. 1765 Philos. Trans. 1764 (Royal Soc.) 54 184 We may justly infer the plexiform unions of the nerves distributed to the superior extremities not more intimate, nor to serve any such purpose as Ganglions. 1830 R. Knox tr. H. Cloquet Syst. Human Anat. 463 Of these portions the outer and larger, which is plexiform, triangular and flattened, comes from the Gasserian ganglion. 1856 R. B. Todd & W. Bowman Physiol. Anat. II. 81 In the cochlea of the bird..we have seen at one end a plexiform arrangement of nucleated fibres ending in loops. 1900 Brit. Med. Jrnl. No. 2040. 248 Its papilla is covered with a plexiform mesh of dilated vessels. 1950 G. P. Wright Introd. Pathol. xxvii. 479 Striking examples of the vascular hamartomas may be seen in the simple, cavernous, or more complicated plexiform, overgrowths of blood vessels that form congenital nævi, birth-marks,..or vascular warts. 1970 Jrnl. Ultrastruct. Res. 33 (title) Ultrastructure and cytochemistry of an extensive plexiform surface coat on the midgut cells of a fulgorid insect. 2004 Cardiovascular Pathol. 13 (Suppl. 1) S193/1 This is the first report of an animal model of PH [= pulmonary hypertension] that includes the plexiform lesions seen in human disease. Compounds plexiform layer n. [after French couche plexiforme (externe, interne) (S. Ramón y Cajal 1893, in La Cellule 9 132)] either of the two layers of the retina separated by the inner nuclear layer, the outer one containing synapses between the rods and cones and the neurons of the nuclear layer, and the inner one containing synapses between these neurons and ganglion cells; also called molecular layer. ΘΚΠ the world > life > the body > sense organ > sight organ > parts of sight organ > [noun] > retina > layers of Jacob's membrane1842 plexiform layer1856 molecular layer1867 pigment epithelium1872 pigment layer1872 1856 Quain's Elements Anat. (ed. 6) III. iii. 40 (heading) Inner molecular or inner plexiform layer, neurospongium. 1911 Ophthalmoscope 9 437 The external plexiform layer remains very narrow. 1942 W. J. S. Krieg Functional Neuroanat. xi. 170 The external horizontal cells lie immediately above the layer of bipolar cells, and just external to the outer plexiform layer. 2000 Proc. National Acad. Sci. U.S.A. 97 11489/2 Tissue sections were chosen where the photoreceptor outer segments and Müller cell processes crossing the inner plexiform layer were continuous in the plane of section. plexiform neurofibroma n. Pathology a neurofibroma that is a mass of tortuous cords of tissue, typically seen in neurofibromatosis. ΚΠ 1878 tr. T. Billroth Lect. Surg. Pathol. & Therapeutics II. 373 Sometimes nerve-fibromata follow the nerve trunks and form knotty cords (plexiform neurofibroma). 1991 Acta Neuropathologica 81 491/1 Neurofibromatosis type 1..is characterized by the focal accumulation of Schwann-like cells..to form subcutaneous and plexiform neurofibromas and schwannomas. 2005 Guardian 15 Feb. ii. 9/1 Disfigurement can also be caused by dermal neurofibromas, bumplike tumours under the skin, and plexiform neurofibromas, disfiguring tumours which, rooted in nerves and muscles, are difficult to remove. plexiform neuroma n. [after French névrome plexiforme (A. Verneuil 1861, in Arch. gén. de méd. 2 550)] Pathology (now rare) a plexiform neurofibroma. ΚΠ 1886 Lancet 22 May 973/2 Reference was made to some observations of Rindfleisch and of Czerny on plexiform neuroma. 1938 Amer. Jrnl. Surg. 39 27/1 In certain plexiform neuromas of neck, back, eyelid and face, the elongated, nodular and contorted nerve trunks show preservation of nerve fibers. 2003 Mutation Res. 543 126/2 Plexiform neuromas, especially those present at birth, are frequently very disfiguring. This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022). < adj.1733
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