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.
For others the trigger is grievance, isolation or personal instability, which gradually hardens inside online echo chambers, where resentment circulates freely.
According to the study, these dunes slowly hardened into rock billions of years ago after interacting with groundwater moving beneath the Martian surface.
From Science Daily
Over time, the mineral deposits hardened the fractured zones into ridges.
From Science Daily
Here is his list of 11 stocks to harden your portfolio against Iran risk.
From MarketWatch
For adults especially, that increases their risk of heart attacks and strokes because it causes plaque-forming particles to build up in their arteries over time, hardening and narrowing them.
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.