Noun
millerandage (uncountable)
English Wikipedia has an article on:millerandageWikipedia
A viticultural problem in which grape bunches contain berries that differ greatly in size and maturity.
Millerandage is most commonly caused by cold or bad weather during the flowering stage of the vines. It impairs the quality of wine made from the grapes.
Millerandage and coulure can also pose problems, along with powdery mildew attacking the thin skin of the grapes. Source: Internet