densi-, dens- +

A reference to the measurement of density or specific gravity.

An instrument for measuring optical density, e.g. that of a photographic negative.

1. The state or quality of being dense; compactness; closely set or crowded condition.
2. Thickness of consistency; impenetrability.
3. Complexity of structure or content.
4. The number of inhabitants, dwellings, or the like, per unit area: "The commissioner noted that the population density of certain city blocks had fallen dramatically."
5. In physics, mass per unit volume.
6. The quantity of electricity per unit of volume at a point in space, or the quantity per unit of area at a point on a surface.
7. The degree of opacity of a substance, medium, etc., that transmits light.
8. In photography, the relative degree of opacity of an area of a negative or transparency, often expressed logarithmically.
9. With computers, a measure of the compactness of data stored on an external storage medium, as disk or tape, or displayed on a CRT or other screen; also, the number of units of useful information contained within a linear dimension.
10. Thickness of consistency; impenetrability.

1. Difficult or impossible to abridge or shorten: The judge presented an incondensable judicial statement.
2. Incapable of being made more compact or reduced to liquid form: In comparison to milk which can be condensed, granite is incondensable and cannot be made more solid than it already is!