Volumic

Volumic is an English adjective meaning relating to volume or to the amount of space occupied by matter. It is used to describe properties, measurements, or processes that depend on volume rather than other quantities such as mass or area. In practice, volumic terminology appears in scientific writing to specify volume-based aspects, for example a volumic flow or volumic concentration. In modern engineering and physics, however, the more common form is volumetric.

Etymology and usage notes: Volumic derives from volume, from the Latin volumen, with the adjectival suffix -ic. It is a cognate of volumetric and is sometimes treated as a variant or archaic form. In contemporary usage, volumic is relatively rare and is more likely to be encountered in older literature or in fields that preserve traditional phrasing.

In usage, volumic tends to overlap with volumetric, and many writers substitute volumetric to avoid ambiguity. Some dictionaries mark volumic as archaic or regional, while others list it as a legitimate but uncommon form. When writing for a general or technical audience, volumetric is usually preferred to convey the same volume-based meaning.

See also: volumetric, volume, density, volumetry, volumetrics, volumetric flow rate.