What's the difference between scoria and sullage?

Scoria


Definition:

  • (n.) The recrement of metals in fusion, or the slag rejected after the reduction of metallic ores; dross.
  • (n.) Cellular slaggy lava; volcanic cinders.

Example Sentences:

  • (1) Scoria (volcanic cinder) was most effective in excluding roots of crested wheatgrass and streambank wheatgrass.

Sullage


Definition:

  • (n.) Drainage of filth; filth collected from the street or highway; sewage.
  • (n.) That which sullies or defiles.
  • (n.) The scoria on the surface of molten metal in the ladle.
  • (n.) Silt; mud deposited by water.

Example Sentences:

  • (1) Four weeks of control achieved in a slow moving sullage canal breeding Culex quinquefasciatus indicates that this IGR can be of use in such breeding habitats.