D defs.my
Entry 2 senses Webster, 1913

Dense

/dĕns/ · IPA /dɛns/
01 a. Having the constituent parts massed or crowded together; close; compact; thick; containing much matter in a small space; heavy; opaque; as,…
  1. 1.
    Having the constituent parts massed or crowded together; close; compact; thick; containing much matter in a small space; heavy; opaque; as, a dense crowd; a dense forest; a dense fog.
    “All sorts of bodies, firm and fluid, dense and rare.” Ray.
    “To replace the cloudy barrier dense.” Cowper.
  2. 2.
    Stupid; gross; crass; as, dense ignorance.