open circulatory system

noun

A system of circulation which is achieved primarily from the heart beating and muscle-induced locomotion of the organism, circulation without veins.

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Meanings

nounopen circulatory system (plural open circulatory systems)

plural open circulatory systems

  1. A system of circulation which is achieved primarily from the heart beating and muscle-induced locomotion of the organism, circulation without veins.
Cite this entry
APA

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

MLA

“open circulatory system.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/open%20circulatory%20system. Accessed November 4, 2026.

Chicago

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

Source: open circulatory system on Wiktionary, CC BY-SA 4.0.