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bathyphase

noun

The time period in a cycle during which the cycle is low, especially the lower part of a sine wave fitted to a measurement of a circadian pattern or other biological rhythm.

“The bathyphase of the metabolic process ran from late evening until shortly after the subject awoke, with the lowest point recorded in at three o'clock in the morning.”

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Meanings

nounbathyphase (plural bathyphases)

plural bathyphases

medicineThe time period in a cycle during which the cycle is low, especially the lower part of a sine wave fitted to a measurement of a circadian pattern or other biological rhythm.
The bathyphase of the metabolic process ran from late evening until shortly after the subject awoke, with the lowest point recorded in at three o'clock in the morning.
Synonyms: trough

Synonyms & antonyms

nounThe time period in a cycle during which the cycle is low, especially the lower part of a sine wave fitted to a measurement of a circadian pattern or other biological rhythm.

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Origin

From bathy- (“deep”) + phase.

Full word history & related roots →

Cite this entry

APA

bathyphase. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/bathyphase

MLA

“bathyphase.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/bathyphase. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “bathyphase,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/bathyphase.

Source: bathyphase on Wiktionary, CC BY-SA 4.0.