DICT.TW Dictionary Taiwan

 Let·tuce n.
 1. Bot. 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.
 Hare's lettuce, Lamb's lettuce. See under Hare, and Lamb.
 Lettuce opium. See Lactucarium.
 Sea lettuce, certain papery green seaweeds of the genus Ulva.
 ◄ ►

 Lactuca sativa
      n : annual or perennial garden plant having succulent leaves
          used in salads; widely grown [syn: garden lettuce, common
          lettuce]