Definition
Relating to a biological rhythm or cycle that repeats approximately every 24 hours, such as sleeping and waking patterns.
Etymology
From Latin circa (about) combined with dies (day), literally 'approximately a day.' Coined in the 1950s by German scientist Erwin Bünning to describe daily biological rhythms discovered by researchers.
Kelly Says
Your body has its own internal clock that's not actually 24 hours—it's closer to 25 hours—which is why if you're in a dark cave with no sunlight, you naturally shift to a slightly longer sleep-wake cycle, proving your circadian rhythm is genuinely built-in.
Translations
AMአማርኛ
circadian
sir-ka-dee-an
ARالعربية
نظام الساعة
nizam al-sa'a
BNবাংলা
circadian
sir-ka-dee-an
CACatalà
circadià
sir-ka-dee-a
CSČeština
circadian
sir-ka-dee-an
DADansk
circadian
sir-ka-dee-an
DEDeutsch
circadian
sir-ka-dee-an
ELΕλληνικά
circadian
sir-ka-dee-an
ESEspañol
circadiano
sir-ka-dee-ah-noh
FAفارسی
circadian
sir-ka-dee-an
FISuomi
circadian
sir-ka-dee-an
FRFrançais
circadien
sir-ka-dee-en
GUGU
circadian
sir-ka-dee-an
HAHA
circadian
sir-ka-dee-an
HEעברית
circadian
sir-ka-dee-an
HIहिन्दी
प्रतिदिन
pratidin
HUMagyar
circadian
sir-ka-dee-an
IDBahasa Indonesia
circadian
sir-ka-dee-an
IGIG
circadian
sir-ka-dee-an
ITItaliano
circadiano
sir-ka-dee-ah-noh
KKKK
circadian
sir-ka-dee-an
KMKM
circadian
sir-ka-dee-an
MRMR
circadian
sir-ka-dee-an
MSBahasa Melayu
circadian
sir-ka-dee-an
MYမြန်မာ
circadian
sir-ka-dee-an
NLNederlands
circadiaan
sir-ka-dee-an
NONorsk
circadian
sir-ka-dee-an
PAPA
circadian
sir-ka-dee-an
PLPolski
circadian
sir-ka-dee-an
PTPortuguês
circadiano
sir-ka-dee-ah-noh
RORomână
circadian
sir-ka-dee-an
RUРусский
суточный
soo-toch-nyy
SVSvenska
circadian
sir-ka-dee-an
SWKiswahili
circadian
sir-ka-dee-an
TAதமிழ்
circadian
sir-ka-dee-an
TEతెలుగు
circadian
sir-ka-dee-an
THไทย
รอบระยะเวลา
roap ra-ya-weh-la
TLTL
circadian
sir-ka-dee-an
TRTürkçe
sirkadiyen
sir-ka-dee-en
UKУкраїнська
circadian
sir-ka-dee-an
URاردو
circadian
sir-ka-dee-an
VITiếng Việt
circadian
sir-ka-dee-an
YOYO
circadian
sir-ka-dee-an
ZUZU
circadian
sir-ka-dee-an