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单词 linea nigra
释义

linea nigran.

Brit. /ˌlɪnɪə ˈnʌɪɡrə/, /ˌlɪnɪə ˈniːɡrə/, U.S. /ˌlɪniə ˈnaɪɡrə/, /ˌlɪniə ˈniɡrə/
Origin: A borrowing from Latin. Etymon: Latin linea nigra.
Etymology: < scientific Latin linea nigra < classical Latin linea linea n. + nigra , feminine singular of niger black (see niger n.1), after post-classical Latin linea alba linea alba n.
A visible dark line in the midline of the abdominal wall, resulting from increased pigmentation of the linea alba (linea alba n.), most commonly occurring during pregnancy.Earlier terms for the linea nigra include (from around 1840) brown line, dark line, and dark line of the abdomen.
ΚΠ
1880 A. M. Piersons in Homœopathic Jrnl. Obstetr. & Dis. Women & Children 2 179 The linea alba was a linea nigra.
1962 C. G. Barnes Med. Disorders in Obstetr. Pract. xiii. 182 The linea nigra may show a male-type distribution of hair in some cases.
2001 N. Wolf Misconceptions 86 I observed the slowly emerging linea nigra of my belly, bisecting it like the two hemispheres of a new world.
This is a new entry (OED Third Edition, September 2019; most recently modified version published online March 2022).
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n.1880
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