harden
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The hardened tissue makes it harder for chemotherapy and immunotherapy drugs to penetrate the tumor.
From Science Daily
But after weeks of a federal operation that has touched nearly everyone in some way or another, attitudes have hardened.
Meanwhile millions were still digging out from hardened snow.
From Barron's
The fact that it is coming not just from civil society advocates and consumer protection regulators, but now from hardened national security practitioners marks a notable shift.
From Barron's
While this dynamic accurately describes the Third Reich, it has hardened into an orthodoxy that governs how information is interpreted and how moral categories are assigned.
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.