Dense (?), a. [L. densus; akin to Gr. thick with hair or leaves: cf. F. dense.]
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.
Stupid; gross; crass; as, dense ignorance.
© Webster 1913.