
1) Medical sign
Found on
https://www.crosswordclues.com/clue/linea-nigra

Linea nigra (Latin for `black line`) is a dark vertical line that appears on the abdomen during about three quarters of all pregnancies. The brownish streak is usually about a centimeter in width. The line runs vertically along the midline of the abdomen from the pubis to the umbilicus, but can also run from the pubis to the top of the abdomen. .....
Found on
http://en.wikipedia.org/wiki/Linea_nigra

A dark line which may develop during pregnancy, running from below the breasts, over the abdomen and the navel. It often fades after delivery but doesn't always disappear entirely.
Found on
http://www.encyclo.co.uk/local/20423

The linea alba in pregnancy, which then becomes pigmented. ... Synonym: black line. ... (05 Mar 2000) ...
Found on
http://www.encyclo.co.uk/local/20973

The so-called black line that runs down the center of the abdomen to the top of the pubic bone. This darkening is caused by pregnancy hormones
Found on
http://www.encyclo.co.uk/local/22139

Type: Term Definitions: 1. the linea alba in pregnancy, which then becomes pigmented. Synonyms: black line
Found on
http://www.medilexicon.com/medicaldictionary.php?t=50571

A dark line that appears on the abdomen during pregnancy.
Found on
http://www.momswhothink.com/pregnancy/pregnancy-terms-glossary.html

A dark vertical line that appears between the navel and the pubic area in some women during pregnancy. It is the result of changing hormones. Although the line will remain in some women, it normally disappears following birth.
Found on
http://www.pregnology.com/

Also called the “pregnancy line”, linea nigra is a dark line that develops in pregnancy and runs down the middle of the belly, from the top of the abdomen to the pelvis. More common among women with darker pigmented skin, linea nigra usually fades soon after pregnancy.
Found on
https://mybabymanual.co.uk/pregnancy-glossary/

A dark line that can appear from the navel to the pubic bone during pregnancy
Found on
https://www.encyclo.co.uk/local/22787

Line of increased pigmentation running down the abdomen from the bellybutton to the pubic area during pregnancy,
Found on
https://www.encyclo.co.uk/local/22789

Line of increased pigmentation running down the abdomen from the bellybutton to the pubic area during pregnancy,
Found on
https://www.encyclo.co.uk/local/23319

A dark line that appears on the abdomen during pregnancy.
Found on
https://www.parents.com/pregnancy/my-body/pregnancy-health/pregnancy-glossa

The so-called black line that runs down the center of the abdomen to the top of the pubic bone. This darkening is caused by pregnancy hormones. The linea nigra may be more noticeable in dark-skinned women than those who are fair-skinned.
Found on
https://www.whattoexpect.com/pregnancy/glossary
No exact match found.