springing clause
n.— «When the county adopted its historic building code amendments, it did so with what’s called a “springing clause,” i.e., one that springs into action if a certain contingency is met.» —“Historic sites key session” by Rodger Nichols Dalles Chronicle (Oregon) June 12, 2006. (source: Double-Tongued Dictionary)
Further reading
An anadrome is a word that forms a whole new word when you spell it backwards. For example, the word “stressed” spelled backwards is “desserts.” Some people’s first names are anadromes. There’s the girl named Noel...
A librarian opens a book and finds a mysterious invitation scribbled on the back of a business card. Another discovers a child’s letter to the Tooth Fairy, tucked into a book decades ago. What stories are left untold by these forgotten...