Density

weight per volume of a material

electric charge per volume, length or area

physical quantity representing the energy per volume

tensor field describing the density and flux of energy in spacetime

count per volume

experiment to determine the mean density of the Earth

screen resolution measured in pixels per length

charge carriers per volume; such as electrons, ions, "holes" or others

The word dord is a dictionary error in lexicography. It was accidentally created, as a ghost word, by the staff of G. and C. Merriam Company (now part of Merriam-Webster) in the New International Dictionary, second edition (1934). That dictionary defined the term as a synonym for density used in physics and chemistry in the following way: dord (dôrd), n. Physics & Chem. Density.

spatial variation in density over an area

force per volume

measure of the quantity of information bits that can be stored on a given length of track, area of surface, or in a given volume of a computer storage medium

relative density used for gases