They are discrete clusters of residual cells from Hertwig's epithelial root sheath (HERS) that didn't completely disappear.

It appears that the slight selectivity of the solvent is able to induce self-assembly of the particles into discrete clusters of Janus particles.

But in Ms. Stout's work the charms and feathers seem to be deployed as decorative accents, the pouches are sewn from too-pretty fabrics, and the nails appear in discrete ornamental clusters.

They found that the Y chromosome appears to be distributed in remarkably discrete clusters.

The data tend to form discrete clusters, and points in the same cluster are more likely to share a label (although data sharing a label may be spread across multiple clusters).

The San Francisco Bay Area metroplex had once been a discrete cluster of cities on the edge of the v-shaped bay, like fingertips delicately holding something of value.

The k-means algorithm partitions genes into a defined set of discrete clusters, attempting to maximize the expression similarity of the genes in each cluster (Figure 2a).

Recent work showed that dinoflagellate genera, which formed discrete clusters in the 18S rDNA-based phylogeny, shared similar sterol compositions.

Replica exchange molecular dynamics studies suggested that amyloid beta can indeed populate multiple discrete structural states; more recent studies identified a multiplicity of discrete conformational clusters by statistical analysis.

They spoke of why they go to all-Jewish private schools or sit in lunchrooms in discrete clusters of black, Hispanic or Asian students, and rarely mingle.