GNU Collaborative International Dictionary of English

Found one definition

1.       
   Orator , n. [L., fr. orare to speak, utter. See Oration.]
   A public speaker; one who delivers an oration; especially, one distinguished for his skill and power as a public speaker; one who is eloquent.
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   I am no orator, as Brutus is.
   Shak.
   
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   Some orator renowned
   In Athens or free Rome.
   Milton.
   
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   (Law) (a) In equity proceedings, one who prays for relief; a petitioner. (b) A plaintiff, or complainant, in a bill in chancery.
   Burrill.
   
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   (Eng. Universities) An officer who is the voice of the university upon all public occasions, who writes, reads, and records all letters of a public nature, presents, with an appropriate address, those persons on whom honorary degrees are to be conferred, and performs other like duties; -- called also public orator.
   1913 Webster