01 n. One who, or that which, operates or produces an effect.
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1.
One who, or that which, operates or produces an effect.
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2.
One who performs some act upon the human body by means of the hand, or with instruments.(Surg.)
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3.
A dealer in stocks or any commodity for speculative purposes; a speculator.[Brokers' Cant]
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4.
The symbol that expresses the operation to be performed; -- called also facient.(Math.) Also: facient
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5.
A person who operates a telephone switchboard.
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6.
A person who schemes and maneuvers adroitly or deviously to achieve his/her purposes.