1. scouring(n = noun.act) - moving over territory to search for something; "scouring the entire area revealed nothing"
is a kind of hunt, hunting, search
Derived form verb scour1
2. scouring(n = noun.act) scrub, scrubbing - the act of cleaning a surface by rubbing it with a brush and soap and water;
is a kind of cleaning, cleansing, cleanup
has particulars: mopping, swabbing
Derived form verb scour2