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The Collaborative International Dictionary of English v.0.48 (gcide)

marijuana \marijuana\ n.
1. A strong-smelling Asian plant ({Cannabis sativa}), also
called {hemp}, from which a number of euphorogenic and
halucinogenic drugs are prepared. The euphoric effect is
predominently due to {tetrahydrocannabinol} ({THC}). [Also
spelled {marihuana}.]

Syn: cannabis, ganja, pot, grass, marihuana, {Cannabis
sativa}.
[WordNet 1.5]

2. The dried leaves or the female flowers of the hemp plant,
which is smoked or chewed to obtain a euphoric effect. The
flowers usually have a higher concentration of the active
ingredient, tetrahydrocannabinol.

Syn: cannabis, ganja, pot, grass, marihuana, dope, weed,
gage, sess, sens, smoke, skunk, Mary Jane.
[WordNet 1.5]


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} ({Cannabis
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.
[1913 Webster]

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.
[1913 Webster]

{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} ({Galeopsis
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.
[1913 Webster]