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concertmistress

American  
[kon-surt-mis-tris, ‑sert-] / ˈkɒn sɜrtˌmɪs trɪs, ‑sərt- /

noun

  1. a female leader of the first violins in a symphony orchestra, who is usually also the assistant to the conductor.

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.