A period of time between two geomagnetic reversals.(noun)
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Use "chron" in a sentence
"You need to either trust them to manage that responsibility or forbid them from doing anything distracting -- from surfing to chron. com to talking to their coworkers about something non-work related."
"How many times can you go to chron. com and not interfere with official business and involves only minimal additional expense to the govt?"