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Meaning of whereat

where•at

Pronunciation: (hwâr-at', wâr-), [key]
— conj.
  1. a reception whereat many were present.
    1. at which:a reception whereat many were present.
    2. to which; whereupon:a remark whereat she quickly angered.
—adv.
  1. in reference to which.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.