Master (redirected from mastery)

master

Primary, controlling. See master-slave communications and master file.

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master

1. a great artist, esp an anonymous but influential artist

2. the principal of some colleges

3. a graduate holding a master's degree

4. the chief executive officer aboard a merchant ship

5. Chiefly Brit a male teacher

6. an officer of the Supreme Court of Judicature subordinate to a judge

7. a machine or device that operates to control a similar one

8. the heir apparent of a Scottish viscount or baron

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master [′mas·tər]

(engineering)

A device which controls subsidiary devices.

A precise workpiece through which duplicates are made.

(engineering acoustics)

master phonograph record

(navigation)

master station

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master - botmaster

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Master 

(from Latin magister, “head,” “chief,” “teacher”), the name of several offices in ancient Rome, for example, magister equitum, the assistant to the dictator, and magister militum, the commander in chief during the late empire. Later, in Europe, the title of grand master (Grossmeister) was used by the head of a Catholic knightly religious order and by the head of the Masonic Grand Lodge.