Marcus Gunn phenomenon

noun

An autosomal-dominant synkinesis in which two or more muscles that are independently innervated have simultaneous or coordinated movements.

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Meanings

nounMarcus Gunn phenomenon (plural Marcus Gunn phenomena)

plural Marcus Gunn phenomena

  1. An autosomal-dominant synkinesis in which two or more muscles that are independently innervated have simultaneous or coordinated movements.

Origin

The condition was first described by the ophthalmologist Robert Marcus Gunn in 1883.

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Cite this entry
APA

Marcus Gunn phenomenon. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/Marcus%20Gunn%20phenomenon

MLA

“Marcus Gunn phenomenon.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Marcus%20Gunn%20phenomenon. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “Marcus Gunn phenomenon,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/Marcus%20Gunn%20phenomenon.

Source: Marcus Gunn phenomenon on Wiktionary, CC BY-SA 4.0.