“The analysis tool has been developed to monitor vibrations in a structure that might be a precursor to a collapse.”

“Qing novels have been the subject of significant recent scholarship, either as a vanguard of the new novelistic experimentation or as a precursor to modern Chinese popular fiction.”

“It was a precursor to the phones we all use today.”

“Androgenic products, namely androstenedione, are testosterone precursors, and transform to this hormone in the body.”

“Still other proteins are synthesized as inactive precursors called zymogens.”

“On to this Stoker pasted some new-fangled psychiatric theory, derived from the French alienist Charcot, one of Freud's main precursors.”