clump russian

• гру́ппа

  group, cluster, clump

  band (music)

• спе́чься

  to be baked, to bake through, to get baked

  to cake together, to clump together

• ската́вшийся

  matted, felted, clumped, lumped

• сли́пшийся

  stuck together, matted, clumped together, caked

• слипа́вшийся

  stuck together, matted, clumped together, agglutinated

• смерза́ющийся

  congealing, clumping together, freezing solid