Smart Definition
Etymology
Pronunciation
relave
tailings
re-
again
+
lavar
to wash
Relave means tailings (mining waste) and can be thought of as re-0 (again0) + lavar1 (to wash1), referring to the process of rewashing ore to extract remaining minerals.
noun
  1. tailings
    Waste material left after extracting ore from mining operations
    El relave de la mina debe ser tratado adecuadamente para evitar la contaminación. // The mine tailings must be properly treated to avoid contamination.