Definition of "every so often" []

• Occasionally; intermittently; irregularly; now and then; once in a while (adverb)

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• "While I was inside giving my speech, I learned later, a citizen reported to the police that a suspicious-acting man had been repeatedly circling the building and stopping every so often to ask people which door I was going to use after the banquet."
• "The gathering was called the Global Word Congress, and the air was so thin at that altitude that you had to stop every so often to catch your breath, and it changed the way you thought after a while."
• "He stopped every so often to dab iodine on wet, pink navels, massage the teats of a tight-bagged cow with lanolin, or doctor a calf for scours."