Madelungn.¹

Brit.

/ˈmad(ə)lʌŋ/,

/ˈmɑːd(ə)lʌŋ/, U.S.

/ˈmæd(ə)ˌləŋ/

Forms: 1900s Mahdelung (irregular), 1900s– Madelung.

Origin: From a proper name. Etymon: proper name Madelung.

Etymology: < the name of Otto Wilhelm Madelung (1846–1926), German surgeon, who described the condition in 1878 ( Verhandl. d. Deutsch. Ges. f. Chir. 7 259).

Medicine.

Madelung's deformity n. (also Madelung deformity) a congenital, often inherited, anomaly of the forearm characterized by bowing of the radius and dorsal subluxation of the distal ulna, occurring more frequently in females.

ΘΚΠ

the world > health and disease > ill health > deformity > deformities of specific parts > [noun] > of hand

club-hand1870

claw-hand1879

main en griffe1881

Madelung's deformity1905

1905 E. H. Bradford & R. W. Lovett Treat. Orthopedic Surg. (ed. 3) Index 663/1 Mahdelung's [sic] deformity of wrist.

1921 Med. Jrnl. S. Afr. 16 158/1 Dr. Dee showed a case of..spontaneous luxation of wrists—Madelung's deformity.

1944 S. Bunnell Surg. of Hand xvi. 625/2 Madelung's deformity..though first mentioned by Dupuytren in 1839, was described more completely in 1878 by Madelung.

1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) XII. 368/1 Rarer congenital defects include..deformities of growth of the bones of the lower arm (Madelung's deformity).

1982 Jrnl. Bone & Joint Surg. 64B 377 Radio-ulnar shortening could either involve both bones equally or the radius predominantly, in which case a typical Madelung deformity was seen.

1997 Amer. Jrnl. Med. Genetics 68 369 One affected individual had a bilateral Madelung deformity, but none had foot involvement.

This entry has been updated (OED Third Edition, March 2000; most recently modified version published online March 2022).

Madelungn.²

Brit.

/ˈmad(ə)lʌŋ/,

/ˈmɑːd(ə)lʌŋ/, U.S.

/ˈmæd(ə)ˌləŋ/

Origin: From a proper name. Etymon: proper name Madelung.

Etymology: < the name of Erwin R. Madelung (1881–1972), German physicist, who first described the constants.Erwin Madelung was the second son of Otto Madelung (see Madelung n.¹).

Physics.

1. Madelung constant n. a fixed number associated with an ionic crystalline solid, usually defined for materials with a halite-like crystal lattice as the product of potential energy per constituent ion and the inter-ionic distance divided by the square of the electronic charge, and analogously for materials with other crystal structures.

ΘΚΠ

the world > matter > physics > atomic physics > ion > [noun] > potential in lattice > number associated with

Madelung constant1932

1932 J. Sherman in Chem. Rev. 11 106 In the sodium chloride structure, the first for which the Madelung constant was evaluated (by Madelung himself), the positions of the ions are completely determined by the symmetry requirements of the structure.

1978 H. M. Rosenberg Solid State (ed. 2) i. 14 For the NaCl lattice the Madelung constant is almost exactly 1.75.

1996 Canad. Jrnl. Chem. 74 885 We also study the Madelung constant of simple cubic lattices as a function of spatial dimension.

2. Madelung potential n. the potential at any point in an ionic lattice due to the combined electric field of all the ions in the lattice.

ΘΚΠ

the world > matter > physics > atomic physics > ion > [noun] > potential in lattice

Madelung potential1966

1966 Physical Rev. 164 753/1 Crystals of the general types M_n and X_m do not have this property of a symmetric Madelung potential influence.

1987 Jrnl. Chem. Physics 86 6959/2 The Mulliken charge approximation for the evaluation of the Madelung potential.

This entry has been updated (OED Third Edition, March 2000; most recently modified version published online March 2022).

单词	madelung
释义	Madelungn.¹ Brit. /ˈmad(ə)lʌŋ/, /ˈmɑːd(ə)lʌŋ/, U.S. /ˈmæd(ə)ˌləŋ/ Forms: 1900s Mahdelung (irregular), 1900s– Madelung. Origin: From a proper name. Etymon: proper name Madelung. Etymology: < the name of Otto Wilhelm Madelung (1846–1926), German surgeon, who described the condition in 1878 ( Verhandl. d. Deutsch. Ges. f. Chir. 7 259). Medicine. Madelung's deformity n. (also Madelung deformity) a congenital, often inherited, anomaly of the forearm characterized by bowing of the radius and dorsal subluxation of the distal ulna, occurring more frequently in females. ΘΚΠ the world > health and disease > ill health > deformity > deformities of specific parts > [noun] > of hand club-hand1870 claw-hand1879 main en griffe1881 Madelung's deformity1905 1905 E. H. Bradford & R. W. Lovett Treat. Orthopedic Surg. (ed. 3) Index 663/1 Mahdelung's [sic] deformity of wrist. 1921 Med. Jrnl. S. Afr. 16 158/1 Dr. Dee showed a case of..spontaneous luxation of wrists—Madelung's deformity. 1944 S. Bunnell Surg. of Hand xvi. 625/2 Madelung's deformity..though first mentioned by Dupuytren in 1839, was described more completely in 1878 by Madelung. 1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) XII. 368/1 Rarer congenital defects include..deformities of growth of the bones of the lower arm (Madelung's deformity). 1982 Jrnl. Bone & Joint Surg. 64B 377 Radio-ulnar shortening could either involve both bones equally or the radius predominantly, in which case a typical Madelung deformity was seen. 1997 Amer. Jrnl. Med. Genetics 68 369 One affected individual had a bilateral Madelung deformity, but none had foot involvement. This entry has been updated (OED Third Edition, March 2000; most recently modified version published online March 2022). Madelungn.² Brit. /ˈmad(ə)lʌŋ/, /ˈmɑːd(ə)lʌŋ/, U.S. /ˈmæd(ə)ˌləŋ/ Origin: From a proper name. Etymon: proper name Madelung. Etymology: < the name of Erwin R. Madelung (1881–1972), German physicist, who first described the constants.Erwin Madelung was the second son of Otto Madelung (see Madelung n.¹). Physics. 1. Madelung constant n. a fixed number associated with an ionic crystalline solid, usually defined for materials with a halite-like crystal lattice as the product of potential energy per constituent ion and the inter-ionic distance divided by the square of the electronic charge, and analogously for materials with other crystal structures. ΘΚΠ the world > matter > physics > atomic physics > ion > [noun] > potential in lattice > number associated with Madelung constant1932 1932 J. Sherman in Chem. Rev. 11 106 In the sodium chloride structure, the first for which the Madelung constant was evaluated (by Madelung himself), the positions of the ions are completely determined by the symmetry requirements of the structure. 1978 H. M. Rosenberg Solid State (ed. 2) i. 14 For the NaCl lattice the Madelung constant is almost exactly 1.75. 1996 Canad. Jrnl. Chem. 74 885 We also study the Madelung constant of simple cubic lattices as a function of spatial dimension. 2. Madelung potential n. the potential at any point in an ionic lattice due to the combined electric field of all the ions in the lattice. ΘΚΠ the world > matter > physics > atomic physics > ion > [noun] > potential in lattice Madelung potential1966 1966 Physical Rev. 164 753/1 Crystals of the general types M_n and X_m do not have this property of a symmetric Madelung potential influence. 1987 Jrnl. Chem. Physics 86 6959/2 The Mulliken charge approximation for the evaluation of the Madelung potential. This entry has been updated (OED Third Edition, March 2000; most recently modified version published online March 2022). < n.¹1905n.²1932
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Madelungn.1

Madelungn.2

Madelungn.¹

Madelungn.²