What does "industrious" mean?

Industrious: Steadily and perseveringly active in a particular pursuit or aim; as, he was negligent in business, but industrious in pleasure; an industrious mischief maker. Industrious to seek out the truth of all things. Spenser. -- In*dus"tri*ous*ly, adv. -- In*dus"tri*ous*ness, n.

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