"furrowing" in the verb sense
1. furrow, rut, groove
hollow out in the form of a furrow or groove
"furrow soil"
2. furrow, wrinkle, crease
make wrinkled or creased
"furrow one's brow"
3. furrow, chamfer, chase
cut a furrow into a columns
Source: WordNet® (An amazing lexical database of English)
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