"harnessed" in the verb sense
1. harness, tackle
put a harness
"harness the horse"
2. harness
exploit the power of
"harness natural forces and resources"
3. harness, rein in, draw rein, rein
control and direct with or as if by reins
"rein a horse"
4. rule, harness, rein
keep in check
"rule one's temper"
"harnessed" in the adjective sense
1. harnessed
brought under control and put to use
"electricity from the harnessed Colorado River"
"the harnessed power of the atom"
Source: WordNet® (An amazing lexical database of English)
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