"Yes, my sons, an adept - a master practitioner of blackest magic without faintest blink of light."

However, it can be used to develop master practitioners in fields that involve increased complexity, numerous webs of interaction, or shifting environments demanding constant attention.

Laugh at a master practitioner of the magic arts?

"It's an art form with master practitioners," Mr. Hirschorn said.

President Bush was a novice in international affairs, while his father had been a master practitioner.

These establish that the master practitioner has learned all that there is to learn about the particular lineage.

Firefox is a certified master practitioner and trainer of neuro-linguistic programming.

T'sart was a master practitioner of the offensive.

For a long time, Mobutu was Zaire, the master practitioner of the political alchemy that turns a single personality into a national emblem.

"Barbara Vine is a master practitioner of the genre in which we are not certain until the end what the crime was."