surface density

noun

, Physics.

1. quantity, as of electric charge, per unit surface area.

Example Sentences

As the CAR T cells slowly expand, the surface density of PEG becomes diluted, progressively restoring their ability to interact with other cells.

From Science Daily

This would be very strange, since very large black holes can form when the surface density of collapsing matter reaches that of, say, ordinary water, and we believe we understand physics at such densities.

From Scientific American

We looked at physics papers and read up on fluid dynamics and use surface density calculations so that when the wheels spin or slide, they dig into the surface and find the grip below.

From Washington Times

Or time itself might work on the unstable chemistry of a picture, fading it to ghostliness or burnishing it to the surface density of a Dutch master.

From Salon

Scanning electronic microscope images were used to determine both the surface density of the cubes after deposition on the layers and the size distribution of the cubes.

From Nature