noun (n)

• a gum resin used as a yellow pigment and a purgative(noun.substance)

  source: wordnet30
• a strong yellow color(noun.attribute)

  Synonym:
  lemon, lemon yellow, maize
  

  source: wordnet30
• A concrete juice, or gum resin, produced by several species of trees in Siam, Ceylon, and Malabar. It is brought in masses, or cylindrical rolls, from Cambodia, or Cambogia, -- whence its name. The best kind is of a dense, compact texture, and of a beatiful reddish yellow. Taken internally, it is a strong and harsh cathartic and emetic.(noun)

  source: webster1913