tonsil stonesRead more in this article about some frequently asked questions and fun facts related to our definitions.
How do you sign “heterogeneous mixture” to a deaf person?Imagine you’re sitting in a high school biology class or a college chemistry lab. The professor is giving a heated lecture using a whole host of long, difficult words. But every time she says “heterogeneous mixture” or “Heisenberg’s Uncertainty Principle” she spells out the entire term one letter at a time. That’s what life is like for deaf students and professionals in the sciences. But …
Origin of stone-deaf
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Use of this word to refer to people with serious hearing difficulties is potentially very offensive: preferred form: profoundly deaf
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Totally unable to hear, as in Poor Grandpa, in the last year he's become stone deaf. [First half of 1800s]
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.