The phrase "unit area" refers to a specific amount of space or surface that is used as a measurement. It is a standardized area that is used for comparison or calculation purposes. Full definition
Nevertheless, the power production per unit area of land is not particularly impressive. (energyadvocate.com)
We see great cultural diversity and large numbers of cultures per unit area in regions of the world in which the environment is really rich. (discovermagazine.com)
The self - catering units area neat and cozy and has everything you need. (travelground.com)