sister block

noun

A tackle block having two sheaves, one above the other.

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Meanings

nounsister block (plural sister blocks)

plural sister blocks

  1. nauticalA tackle block having two sheaves, one above the other.
Cite this entry
APA

sister block. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/sister%20block

MLA

“sister block.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/sister%20block. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “sister block,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/sister%20block.

Source: sister block on Wiktionary, CC BY-SA 4.0.