A punctuation mark (/) used to separate related items of information

WordNet Word definitions in WordNet
n. a punctuation mark (/) used to separate related items of information [syn: solidus , slash , virgule , diagonal , stroke ] [also: separatrices (pl)]

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
line or hooked line used to separate printed figures, originally with numerals and used where modern texts use a decimal point, also in other specialized senses, from Late Latin (linea) separatrix , feminine agent noun from separare (see separate (v.)).

Wiktionary Word definitions in Wiktionary
n. 1 (context mathematics English) The boundary separating two modes of behaviour in a differential equation. 2 (context mathematics archaic English) The decimal point.

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Separatrix \Sep`a*ra"trix\, n.; pl. L. -trices , E. -trixes . [L., she that separates.] (Arith.) The decimal point; the dot placed at the left of a decimal fraction, to separate it from the whole number which it follows. The term is sometimes also applied ...

Wikipedia Word definitions in Wikipedia
Separatrix (from Latin , the feminine form of "separator") may refer to: Separatrix, an mark or vertical bar formerly used as a decimal point Separatrix, a proofreader's mark resembling the slash Separatrix in math , an equation to determine the borders ...