凝集

níngjí
  1. to concentrate
  2. to gather
  3. (biology) to agglutinate

CEDICT

biology

Entry Composition

1 凝 níng
  1. to congeal
  2. to concentrate attention
  3. to stare
2 集 jí
  1. to gather
  2. to collect
  3. collected works
  4. classifier for sections of a TV series etc: episode