Hypertext Webster Gateway: "Extensively"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Extensively \Ex*ten"sive*ly\, adv.
To a great extent; widely; largely; as, a story is
extensively circulated.
From WordNet (r) 1.7 (wn)
extensively
adv 1: in a widespread way; "oxidation ponds are extensively used
for sewage treatment in the Midwest"
2: to a great extent
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