Source : Webster's Revised Unabridged Dictionary (1913)

Timothy \Tim"o*thy\, n., or Timothy grass \Tim"o*thy grass`\
   [From Timothy Hanson, who carried the seed from New England
   to Maryland about 1720.] (Bot.)
   A kind of grass ({Phleum pratense}) with long cylindrical
   spikes; -- called also {herd's grass}, in England,
   {cat's-tail grass}, and {meadow cat's-tail grass}. It is much
   prized for fodder. See Illustration in Appendix.

Source : WordNet®

timothy
     n 1: grass with long cylindrical spikes frown in northern United
          States and Europe for hay [syn: {herd's grass}, {Phleum
          pratense}]
     2: a disciple of Saint Paul who became the leader of the
        Christian community at Ephesus
     3: a grass grown for hay