| having high relative density or specific gravity | gathered together or made less diffuse |
| hard to pass through because of dense growth | (of light) transmitted directly from a pointed light source |
| slow to learn or understand; lacking intellectual acuity | being the most concentrated solution possible at a given temperature; unable to dissolve still more of a substance |
| permitting little if any light to pass through because of denseness of matter | intensely focused |
| having component parts closely crowded together | of or relating to a solution whose dilution has been reduced |