Noun
an end of DNA in which one strand of the double helix extends a few units beyond the other
Source: WordNetSeasoned readers of Golden Age detective fiction will settle down in anticipation of a mystery where Aunt Agatha comes to a sticky end, and the finger of suspicion points at one after another of her impoverished relatives. Source: Internet
Not many chores are as tedious -- not to mention annoying -- especially when you struggle to find the sticky end of a roll of shipping tape. Source: Internet