\Pro*fess"or\, n. [L., a teacher, a public teacher:
cf. F. professeur. See {Profess}.]
1. One who professed, or makes open declaration of, his
   sentiments or opinions; especially, one who makes a public
   avowal of his belief in the Scriptures and his faith in
   Christ, and thus unites himself to the visible church.
   ``Professors of religion.'' --Bacon.
2. One who professed, or publicly teaches, any science or
   branch of learning; especially, an officer in a
   university, college, or other seminary, whose business it
   is to read lectures, or instruct students, in a particular
   branch of learning; as a professor of theology, of botany,
   of mathematics, or of political economy.