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1. Involving great labor; laborious.
2. Industrious; diligent.
2. industrious; busy
[C17: from Latin operōsus painstaking, from opus work]
ˈoperˌoseness, operosity n
done with or involving much labor; tedious.
[1660–70; < Latin operōsus busy, active =oper- (s. of opus) work + -ōsus -ose1]
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|Adj.||1.||operose - characterized by effort to the point of exhaustion; especially physical effort; "worked their arduous way up the mining valley"; "a grueling campaign"; "hard labor"; "heavy work"; "heavy going"; "spent many laborious hours on the project"; "set a punishing pace"|
effortful - requiring great physical effort