challenge
noun
a call or summons to engage in any contest, as of skill, strength, etc.
rechallenge
-
a word derived from
challenge.
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.
"When combined with an existing immunotherapy drug, the ATP-modified, paclitaxel-loaded nanoparticles eliminated tumors in mice and protected them from rechallenge with tumor cells," Yeo said.
From Science Daily ● Mar. 27, 2024
