backslash

Etymology
, because it is a slash going back against the direction of writing, in contrast to the common slash.

Noun

 * 1) The punctuation mark \.

Usage notes

 * Sometimes used to indicate the beginning and ending of an area of words being marked for correction.

Translations

 * Arabic: مَائِلَة مُعَاكِسَة
 * Bulgarian: обра́тна черта́
 * Chinese:
 * Mandarin: ,
 * Czech: zpětné lomítko
 * Dutch:, terugschrap, omgekeerde schuine streep, schuine streep naar links, schuine streep naar achter, terugstreep
 * Esperanto: deklivo
 * Estonian:, , ,
 * Faroese: bakskák
 * Finnish:
 * French:, , ,
 * German:, Rückwärtsschrägstrich
 * Greek:, ανάστροφη κάθετος
 * Hungarian: fordított törtvonal
 * Italian: barra inversa
 * Japanese:, 逆斜線
 * Korean: 역슬래시, 역사선(逆斜線)
 * Latvian:
 * Lithuanian:
 * Macedonian: лева коса црта
 * Maltese: sinjal djagonali
 * Norwegian:
 * Bokmål: bakstrek
 * Polish: ukośnik odwrotny, ukośnik wsteczny, ukośnik lewy,
 * Portuguese: barra invertida,
 * Romanian: bară oblică inversă, linie oblică inversă
 * Russian: обра́тная коса́я, обра́тная коса́я черта́, обра́тный слэш, бе́кслэ́ш
 * Slovak: spätná lomka, opačná lomka
 * Slovene: leva poševnica
 * Spanish: barra inversa, barra oblicua inversa, barra invertida, barra revertida,
 * Thai: แบ็กสแลช
 * Turkish: ters bölü
 * Ukrainian: обе́рнена скісна́ ри́ска, бе́кслеш

Verb

 * 1)  To escape (a metacharacter) by prepending a backslash that serves as an escape character, thereby forming an escape sequence.

Etymology
Borrowed from.