massic

Attribute to a physical quantity obtained by division by mass; synonymous with specific.
Source:
ISO 31-0: 1992 (Quantities and Units - Part 0: General Principles, Units and Symbols.)
PAC, 1996, 68, 957 (Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)) on page 980