WordWeb Online

1. Permitting little if any light to pass through because of denseness of matter
   "dense smoke"
   - heavy, impenetrable
    
2. Hard to pass through because of dense growth
   "dense vegetation"
   - thick
    
3. Having high relative density or specific gravity
   "dense as lead"
    
4. Slow to learn or understand; lacking intellectual acuity
   "so dense he never understands anything I say to him"
   - dim, dull, dumb, obtuse, slow

Sounds like: dents

Derived forms: densest, denser

See also: denseness, density, heavy, impenetrable, stupid, thick

Encyclopedia: Dense