master
noun
a person with the ability or power to use, control, or dispose of something.
have been mastering
-
present perfect progressiveof master.present perfect progressive
Used to describe an action that began in the past, has continued continuously, and is still in progress.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
"Contrary to the nature of the pure elements, we have been mastering the use of mixtures of these elements that allow for low temperature growth of crystals with minimal vapor pressure," said Canfield.
From Science Daily ● Mar. 13, 2024
Drugmakers have been mastering new techniques for battling viruses, in the process curing diseases that were once considered unconquerable, or inventing new vaccines to prevent them.
From US News ● Sep. 2, 2014
