oblique dash

Etymology
A clarification of the intended sense of.

Noun

 * 1)   ⟨/⟩.
 * 2) * 1962, Giuseppe Grioli, Mathematical Theory of Elastic Equilibrium (Recent Results), page 132, n. 1:
 * In (9.2) and in the following equations an oblique dash (/) before an index r denotes differentiation with respect to χr.
 * In (9.2) and in the following equations an oblique dash (/) before an index r denotes differentiation with respect to χr.