first•handPronunciation: (fûrst'hand'), [key]
from the first or original source: We heard the news of the accident firsthand from a witness.
of or pertaining to the first or original source.
direct from the original source: firsthand knowledge of the riot. Also,first'-hand'.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.