Princeton's WordNet

1. beebread, ambrosia(noun)

   a mixture of nectar and pollen prepared by worker bees and fed to larvae

   Synonyms:
   ambrosia, beebread, bitterweed, ragweed, nectar

2. ragweed, ambrosia, bitterweed(noun)

   any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma

   Synonyms:
   ragwort, ragweed, bugloss, bristly oxtongue, nectar, bitterweed, tansy ragwort, ambrosia, beebread, benweed, oxtongue

3. ambrosia(noun)

   fruit dessert made of oranges and bananas with shredded coconut

   Synonyms:
   beebread, bitterweed, ragweed, nectar

4. ambrosia, nectar(noun)

   (classical mythology) the food and drink of the gods; mortals who ate it became immortal

   Synonyms:
   ambrosia, beebread, bitterweed, ragweed, nectar