circadian rhythm meaning
EN
US WCircadian rhythm
- A circadian rhythm /sɜrˈkeɪdiən/ is any biological process that displays an endogenous, entrainable oscillation of about 24 hours.
- The term circadian comes from the Latin circa, meaning "around" (or "approximately"), and diēs, meaning "day". The formal study of biological temporal rhythms, such as daily, tidal, weekly, seasonal, and annual rhythms, is called chronobiology.
- Although circadian rhythms are endogenous ("built-in", self-sustained), they are adjusted (entrained) to the local environment by external cues called zeitgebers (from German, "time giver"), which include light, temperature and redox cycles.
- NounPLcircadian rhythms
- The "internal body clock" that regulates the (roughly) 24-hour cycle of biological processes in animals and plants.
- The "internal body clock" that regulates the (roughly) 24-hour cycle of biological processes in animals and plants.
Definition of circadian rhythm in English Dictionary
- Part-of-Speech Hierarchy
- Nouns
- Countable nouns
- Countable nouns
- Nouns
Source: Wiktionary
Grammatically, this idiom "circadian rhythm" is a noun, more specifically, a countable noun.