Source : Webster's Revised Unabridged Dictionary (1913)

Hemp \Hemp\ (h[e^]mp), n. [OE. hemp, AS. henep, h[ae]nep; akin
   to D. hennep, OHG. hanaf, G. hanf, Icel. hampr, Dan. hamp,
   Sw. hampa, L. cannabis, cannabum, Gr. ka`nnabis, ka`nnabos;
   cf. Russ. konoplia, Skr. [,c]a[.n]a; all prob. borrowed from
   some other language at an early time. Cf. {Cannabine},
   {Canvas}.]
   1. (Bot.) A plant of the genus {Cannabis} ({C. sativa}), the
      fibrous skin or bark of which is used for making cloth and
      cordage. The name is also applied to various other plants
      yielding fiber.

   2. The fiber of the skin or rind of the plant, prepared for
      spinning. The name has also been extended to various
      fibers resembling the true hemp.

   {African hemp}, {Bowstring hemp}. See under {African}, and
      {Bowstring}.

   {Bastard hemp}, the Asiatic herb {Datisca cannabina}.

   {Canada hemp}, a species of dogbane ({Apocynum cannabinum}),
      the fiber of which was used by the Indians.

   {Hemp agrimony}, a coarse, composite herb of Europe
      ({Eupatorium cannabinum}), much like the American boneset.
      

   {Hemp nettle}, a plant of the genus {Galeopsis} ({G.
      Tetrahit}), belonging to the Mint family.

   {Indian hemp}. See under {Indian}, a.

   {Manila hemp}, the fiber of {Musa textilis}.

   {Sisal hemp}, the fiber of {Agave sisalana}, of Mexico and
      Yucatan.

   {Sunn hemp}, a fiber obtained from a leguminous plant
      ({Crotalaria juncea}).

   {Water hemp}, an annual American weed ({Acnida cannabina}),
      related to the amaranth.

Manila \Ma*nil"a\, Manilla \Ma*nil"la\, a.
   Of or pertaining to Manila or Manilla, the capital of the
   Philippine Islands; made in, or exported from, that city.

   {Manila cheroot} or {cigar}, a cheroot or cigar made of
      tobacco grown in the Philippine Islands.

   {Manila hemp}, a fibrous material obtained from the {Musa
      textilis}, a plant allied to the banana, growing in the
      Philippine and other East India islands; -- called also by
      the native name {abaca}. From it matting, canvas, ropes,
      and cables are made.

   {Manila paper}, a durable brown or buff paper made of Manila
      hemp, used as a wrapping paper, and as a cheap printing
      and writing paper. The name is also given to inferior
      papers, made of other fiber.

Source : WordNet®

Manila hemp
     n 1: a kind of hemp obtained from the abaca plant in the
          Philippines [syn: {Manilla hemp}, {abaca}]
     2: Philippine banana tree having leafstalks that yield Manila
        hemp used for rope and paper etc [syn: {abaca}, {Musa
        textilis}]