Frankfurt plane

noun

The anatomical position of the human skull, based on a plane passing through the inferior margin of the left orbit and the upper margin of each ear canal or external auditory meatus.

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Meanings

nounFrankfurt plane (plural Frankfurt planes)

plural Frankfurt planes

  1. anatomyThe anatomical position of the human skull, based on a plane passing through the inferior margin of the left orbit and the upper margin of each ear canal or external auditory meatus.

Origin

Established in 1884 at the World Congress on Anthropology in Frankfurt, Germany.

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Cite this entry
APA

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

MLA

“Frankfurt plane.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Frankfurt%20plane. Accessed November 5, 2026.

Chicago

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

Source: Frankfurt plane on Wiktionary, CC BY-SA 4.0.