Definitions
There are 2 meanings of the phrase
Trial-And-Error.
Trial-And-Error - as an adjective satellite
Trying out various means or theories until error is satisfactorily reduced or eliminated
Example: "He argued that all learning is a trial-and-error process that resembles biological evolution"
Relating to solving problems by experience rather than theory
Example: "They adopted a trial-and-error procedure"
Example Sentences
"The scientists used a trial-and-error approach to find the right combination of ingredients."
"The artist employed a trial-and-error method to discover the best color palette for the painting."
"The athlete relied on trial-and-error training to improve their performance."
"In the early stages of product development, companies often use trial-and-error testing."
"The engineer used trial-and-error adjustments to optimize the machine's efficiency."