1 (in full Indian hemp) a herbaceous plant, Cannabis sativa, native to Asia.
2 its fibre extracted from the stem and used to make rope and stout fabrics.
3 any of several narcotic drugs made from the hemp plant (cf. CANNABIS, MARIJUANA).
4 any of several other plants yielding fibre, including Manila hemp and sunn hemp.
Phrases and idioms:
hemp agrimony a composite plant, Eupatorium cannabinum, with pale-purple flowers and hairy leaves. hemp-nettle any of various nettle-like plants of the genus Galeopsis.
Etymology: OE henep, haelignep f. Gmc, rel. to Gk kannabis
Useful english dictionary. 2012.