/sep"euh ray'triks, sep'euh ray"-/ , n. , pl. separatrices /sep'euh ray"tri seez', -euhr euh truy"seez/ , separatrixes .
1. something that divides or separates, as the line between light and dark areas on a partially illuminated surface.
2. virgule.
3. Math. one of several symbols for separating components of a number, as a decimal point or comma.
[ 1650-60; separatrix, LL; see SEPARATOR, -TRIX ]