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breadcrumb

/ˈbɹɛdˌkɹʌm/ noun

noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about breadcrumb at Wordnik → Where our words come from →

  1. Crumb of bread; used especially for coating or thickening.

Origin

From bread + crumb. The computing and figurative senses allude to the German fairy tale Hansel and Gretel, where Hansel leaves a trail of breadcrumbs to find the way back home when venturing into the woods.

From Wiktionary, via Kaikki.org (CC BY-SA)