A woman teacher, especially one who is regarded as strict or old-fashioned.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "schoolmarm" in a sentence
"Are you a woman in her thirties or a schoolmarm from the thirties?"
"She piles her hair up in a librarian's bun and wears what she calls "schoolmarm" glasses (one blogger compared her to "Tina Fey's sexier sister")."
"Whiteside was set to wed "schoolmarm" Elaine Fair."