circadian
pronunciation
How to pronounce circadian in British English:
UK [sɜ:ˈkeɪdiən]
How to pronounce circadian in American English:
US [sɜrˈkeɪdiən]
-
- Adjective:
- of or relating to biological processes occurring at 24-hour intervals
Word Origin
- circadian (adj.)
- coined 1959 from Latin circa "about" (see circa) + diem, accusative singular of dies "day" (see diurnal). The original use is in circadian rhythm.
Example
- 1. Circadian rhythms influence hematopoietic stem cells .
- 2. They also displayed altered activity in key genes that control the roughly 24-hour circadian rhythm .
- 3. Foster said a person would need around 500 to 1000 lux to shift their circadian clocks .
- 4. Circadian gene helps the brain predict mealtime .
- 5. Circadian disorders result from placing humans in unnatural situations .