piercer

noun

pierc·​er
-sə(r)
plural -s
: one that pierces: such as
a
archaic : a keen eye
b
: an instrument (as an auger, gimlet, or stiletto) for boring or making holes
c
: a worker that pierces by hand or machine
d
: the ovipositor or the sting of an insect

Word History

Etymology

Middle English percer, persour, from Anglo-French perceour, persour, from Old French percer to pierce + Anglo-French -our, -eour -er

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

  1. Expanded definitions
  2. Detailed etymologies
  3. Advanced search tools
  4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now

Browse Nearby Words

Cite this Entry

“Piercer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/piercer. Accessed 23 Dec. 2025.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!