molar

Adjective before the name of an extensive quantity generally meaning division by amount of substance to make it intensive. Molar volume is volume divided by amount of substance. In a few special cases molar is used to denote division by amount concentration (e.g. molar absorption coefficient).
Source:
Green Book, 2nd ed., p. 7
PAC, 1996, 68, 957 (Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)) on page 982