# bathyphase

> English word · Noun

## Definitions
1. 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.

## Etymology
From bathy- (“deep”) + phase.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/bathyphase