Meaning

noun the quality of being mentally slow and limited

noun the spatial property of being crowded together

noun the amount per unit size

originEtymology tree English dense Proto-Germanic *-inōną Proto-Indo-European *-dyé- Proto-Germanic *-atjaną Proto-Indo-European *-tus Proto-Germanic *-þuz Proto-Germanic *-assuz Proto-Germanic *-inassuz Proto-West Germanic *-nassī Old English -nes Middle English -nesse English -ness English denseness From dense + -ness.

Etymology from Wiktionary, CC BY-SA 3.0