honeydew

Short definition from Wiktionary

Noun

1. 1
   A sweet, sticky substance deposited on leaves and other plant parts by insects (especially aphids and scale insects) feeding on plant sap, or by fungi.
2. 2
   A sweet liquid substance resembling the substance mentioned in sense 1, such as honey, nectar, or manna in the Bible.
3. 3
   A blackish mould (often called sooty mould) produced by fungi of the order Dothideales, feeding on the substance mentioned in sense 1.
4. 4
   In full honeydew tobacco: a fine sort of tobacco moistened with a sweet substance (originally molasses).
5. 5
   Ellipsis of honeydew melon (“a melon from the Cucumis melo Inodorus cultivar group, with sweet, light green or white flesh and a smooth greenish-white or yellow rind”).
6. 6
   Ellipsis of honeydew melon (“a melon from the Cucumis melo Inodorus cultivar group, with sweet, light green or white flesh and a smooth greenish-white or yellow rind”): A light green colour, like the flesh of some honeydew melons.
7. 7
   Something that is enjoyable or pleasant.

Adjective

1. 1
   Of a light green colour, like the flesh of some honeydew melons.