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block chain

noun

block chain is a noun meaning “A chain in which the alternate links are broad blocks connected by thin side links pivoted to the ends of the blocks, used with sprocket wheels to…” (English Wiktionary, September 2026). It is spelled B-L-O-C-K-C-H-A-I-N. The plural of block chain is block chains.

What does block chain mean?

noun

  1. 1

    A chain in which the alternate links are broad blocks connected by thin side links pivoted to the ends of the blocks, used with sprocket wheels to transmit power, as in a bicycle.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Forms of block chain

  • block chains plural

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Words people confuse with block chain

Word pairs people search, with the monthly searches for “a vs b” (G: Google, B: Bing, United States).

Also written: blockchain (one word or two).

Sources: Google and Bing searches (September 2025 to August 2026, through DataForSEO); English Wiktionary (homophones, alternative spellings).