A room in which lectures are delivered, as at a university or in a church.(noun)
The Century Dictionary (Public Domain)
Use "lecture-room" in a sentence
"He found himself regretting as the time drew near for him to go back to his lecture-room and his inhibition."
"Man, the mighty toiler, reacting upon a hostile environment, she thought, going back in memory to the masters whose wisdom she had shared in lecture-room and midnight study."
"It was on Tuesday that I saw my first death -- Miss Collbran, one of my students, sitting right there before my eyes, in my lecture-room."