1) Food coloring
Found on
https://www.crosswordclues.com/clue/juglone
Juglone, also called 5-hydroxy-1,4-naphthalenedione (IUPAC) or 5-hydroxynaphthoquinone, is an organic compound with the molecular formula C10H6O3. In the food industry, juglone is also known as C.I. Natural Brown 7 and C.I. 75500. Other names in industry are Nucin, Regianin, NCI 2323, and Oil Red BS. Juglone occurs naturally in the leaves, roots, ...
Found on
http://en.wikipedia.org/wiki/Juglone
• (n.) A yellow crystalline substance resembling quinone, extracted from green shucks of the walnut (Juglans regia); -- called also nucin.
Found on
http://thinkexist.com/dictionary/meaning/juglone/
Ju'glone noun [ Latin
jugl ans the walnut +
-one .]
(Chemistry) A yellow crystalline substance resembling quinone, extracted from green shucks of the walnut (
Juglans regia ); -- called also
nucin .
Found on
http://www.encyclo.co.uk/webster/J/15
A toxic, natural, chemical defense mechanism of certain trees, e.g., walnut, butternut, to reduce competition for resources. Plants such as tomato, potato, blackberry, blue- berry, azalea, mountain laurel, rhododendron, red pine, and apple may be injured or killed within one to two months of growth within the root zone of these trees.
Found on
https://extension.umd.edu/hgic/resource-library/vegetable-gardening-glossar
No exact match found.
