lemon Meaning, Definition & Usage

  1. noun yellow oval fruit with juicy acidic flesh
  2. noun a strong yellow color
    lemon yellow; maize; gamboge.
  3. noun a small evergreen tree that originated in Asia but is widely cultivated for its fruit
    Citrus limon; lemon tree.
  4. noun a distinctive tart flavor characteristic of lemons
  5. noun an artifact (especially an automobile) that is defective or unsatisfactory
    stinker.

WordNet

Lem"on noun
Etymology
F. limon, Per. limn; cf. Ar.laimn, Sp. limon, It. limone. Cf. Lime a fruit.
Definitions
  1. (Bot.) An oval or roundish fruit resembling the orange, and containing a pulp usually intensely acid. It is produced by a tropical tree of the genus Citrus,the common fruit known in commerce being that of the species C. Limonum or C. Medica (var. Limonum). There are many varieties of the fruit, some of which are sweet.
  2. The tree which bears lemons; the lemon tree. Lemon adj. 1. of the color lemon-yellow. 2. of or relating to lemons, as lemon pie.

Webster 1913