Lettuce /(lĕt"tĭs)/

Let·tuce

Lettuce

n.
  1. A composite plant of the genus Lactuca (Lactuca sativa), the leaves of which are used as salad. Plants of this genus yield a milky juice, from which lactucarium is obtained. The commonest wild lettuce of the United States is Lactuca Canadensis. (Bot.)
  2. United States currency; dollar bills; greenbacks. [slang]

Phrases & Compounds
Hare's lettuce
See under Hare, and Lamb.
Lettuce opium
See Lactucarium.
Sea lettuce
certain papery green seaweeds of the genus Ulva.