from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The rank, office, or term of office of a professor.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. professorship
from The Century Dictionary and Cyclopedia
- n. The office or state of a professor or public teacher.
- n. The period of time during which a professor occupies his office.
- n. A body of professors; the teaching staff of professors in a college or a university.
professor + -ate (Wiktionary)