Definition of man-root in US English:

man-root

noun

  • 1Either of two North American ipomoeas with large tuberous roots, Ipomoea leptophylla, of the dry plains east of the Rocky Mountains, and the wild potato vine, I. pandurata.

  • 2Any of several western North American gourds of the genus Marah (family Cucurbitaceae).

  • 3The medicinal root of a ginseng (genus Panax), especially one from Asia.

Origin

Mid 19th century; earliest use found in William Hemsley Emory (1811–1887).