The phrase "unit volume" refers to the amount of space occupied by a single unit or object. It is a way to measure the size or capacity of an individual item. Full definition
The small size means a very large surface area of silver per unit volume of silver. (clspress.com)
This robust sales growth was driven by annual blended same - restaurant sales growth of 4.6 %, building on an already competitively superior average unit volumes of $ 6.4 million for the group. (seekingalpha.com)
In the 1990s, single - family home sales, on average, comprised 16 percent of the annual unit volume of all single - family home sales. (realtormag.realtor.org)