பொருள் : Trying out various means or theories until error is satisfactorily reduced or eliminated.
எடுத்துக்காட்டு :
He argued that all learning is a trial-and-error process that resembles biological evolution.
பொருள் : Relating to solving problems by experience rather than theory.
எடுத்துக்காட்டு :
They adopted a trial-and-error procedure.