clump

When enough of these pebbles clump together, they can collapse under their own weight to form asteroid-sized rocks, which hoover up the material around them until they’ve grown into full-sized planets.

When she ran out of ferns that were real, she invented fictional ferns: the quilted fern, which died down each winter into a soft and cozy clump.

When tau becomes misfolded, it starts clumping together into long, fibrous aggregates known as fibrils.

Prior to “Bram Stoker’s Dracula” most were willing to brush clumps of cigarette ash off of cardigan sweaters and, at most, bail a lover out of jail.

The term microclots, recently adopted in the scientific literature, refers to abnormal clumps of blood clotting proteins circulating in a patient's blood stream.