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razorblade

American  
[rey-zer-bleyd] / ˈreɪ zərˌbleɪd /
Or razor blade

noun

  1. a sharp-edged metal blade for use in a razor.

Etymology

Origin of razorblade

First recorded in 1660–70 as razor-blade

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.