The phrase "dense clusters" refers to a group of objects or people that are packed closely together, with very little space between them. Full definition
The pieces can be interpreted as abstractions, but also as dense clusters of ideas. (hyperallergic.com)
We show that both Taurus - Auriga and Chamaeleon show an excess in disc fraction compared to the decline in disc fraction in denser clusters of similar age, suggesting that discs survive longer in their low - density, low - mass environments. (eos-nexus.org)
3 BUNDLES OF LOVE Dense clusters like this one show that even if one person in a densely connected component began to, say, use a condom, his behavior would effect little positive change. (discovermagazine.com)