dirgo -dig- gismu

x₁ is a drop [small, cohesive shape] of material [liquid/vapor] x₂ in surrounding material x₃.

In notes:

bidju: x₁ is a bead/pebble [shape/form] of material x₂.
daplu: x₁ is an island/atoll/key of [material/properties] x₂ in surroundings/body x₃; x₁ is insular.
orvalu: x₁ condenses/liquefies from vapour phase at temperature x₂, pressure x₃; x₁ is dew/condensate