Circadian Rhythm

Definition: Circadian Rhythm

Circadian Rhythm

Noun

1. A daily cycle of activity observed in many living organisms.

Domain	Definitions
Aerospace	A regular change in physiological function occurring in approximately 24-hour cycles. (references)
Geography	An innate physiological rhythm manifested by regular fluctuations in body chemistry or other indicators of the physiological state related to the 24-hour or day-night cycle. Source: European Union. (references)
Health	The regular recurrence, in cycles of about 24 hours, of biological processes or activities, such as sensitivity to drugs and stimuli, hormone secretion, sleeping, feeding, etc. This rhythm seems to be set by a 'biological clock' which seems to be set by recurring daylight and darkness. (references)
Source: compiled by the editor from various references; see credits.

Crosswords: Circadian Rhythm

English words defined with "circadian rhythm": jet lag. (references)

Specialty definitions using "circadian rhythm": Sleep Disorders, Circadian Rhythm. (references)

Domain	Title
Books	Central Regulation of Energy Metabolism With Special Reference To Circadian Rhythm (reference) (more book examples)
Source: compiled by the editor from various references; see credits.

Subject	Topic	Quote
Health		Insomnia may also be related to circadian rhythm disorders. (references)
		The role of pharmacological, behavioral, and phototherapeutic management of disorders of circadian rhythm regulation is currently under investigation. (references)
Source: compiled by the editor from ICON Group International, Inc.; see credits.

The following statistics estimate the number of searches per day across the major English-language search engines as identified by various trade publications. Hyperlinks lead to commercial use of the expression at Amazon.com.

Language		Translations for "circadian rhythm"; alternative meanings/domain in parentheses.
Danish		døgnrytme. (various references)

Dutch		circadiaans ritme. (various references)

Finnish		vuorokausirytmi, sirkadiaaninen rytmi. (various references)

French		rythme circadien. (various references)

German		cirkadianer Rhythmus, zirkadianer Rhythmus, Schlaf-Wach-Rhythmus (sleeping-waking rhythm), 24-Stundenrhythmus. (various references)

Greek		νυχθημερής ρυθμός, εικοσιτετράωρος ρυθμός. (various references)

Italian		ritmo circadiano (daily rhythm). (various references)

Japanese Kanji		概日リズ� . (various references)

Japanese Katakana		がいじつリズ� . (various references)

Pig Latin		ircadiancay ythmrhay

Portuguese		ritmo circadiano. (various references)

Spanish		ritmo circadiano. (various references)

Swedish		dygnsrytm. (various references)
Source: compiled by the editor from various translation references.

Misspellings
	"Circadian Rhythm" is suggested in spellcheckers for the following: cicadian rythm. (additional references)
Source: compiled by the editor, based on several corpora (additional references).

Scrabble® Enable2K-Verified Anagrams
	Words within the letters "a-a-c-c-d-h-h-i-i-m-n-r-r-t-y"
	-5 letters: arrhythmia, arrhythmic, matriarchy.
Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro.

Hexadecimal (or equivalents, 770AD-1900s) (references)

43 69 72 63 61 64 69 61 6E 52 68 79 74 68 6D

Leonardo da Vinci (1452-1519; backwards) (references)

Binary Code (1918-1938, probably earlier) (references)

01000011 01101001 01110010 01100011 01100001 01100100 01101001 01100001 01101110 00100000 01010010 01101000 01111001 01110100 01101000 01101101

HTML Code (1990) (references)

&#67 &#105 &#114 &#99 &#97 &#100 &#105 &#97 &#110 &#32 &#82 &#104 &#121 &#116 &#104 &#109

ISO 10646 (1991-1993) (references)

0043 0069 0072 0063 0061 0064 0069 0061 006E 0052 0068 0079 0074 0068 006D

Encryption (beginner's substitution cypher): (references)

3775846967707567802527491867479

Non-English Dictionaries with "Circadian Rhythm"

Language	Coverage	Language Translations
Danish	ordbog, deskriptordefinition, oversættelse	tanskalainen, danois, dänisch, δανικόσ, δανόσ, danese, dinamarquês, danés, dansk
Dutch	woordenboek, definitie, translatie	hollandsk, hollantilainen, néerlandais, holländisch, ολλανδικόσ, ολλανδόσ, olandese, holandês, holandés, holländsk
Finnish	määritelmä, translaatio, taajuusmuutos	suomi, suomalainen, finnois, Finlandaise, finlandais, finnisch, φινλανδικόσ, finlandese, finlandês, finês, finlandés, finés, finsk
French	dictionnaire, définition, traduction	ranskalainen, français, französisch, γαλλικόσ, γαλλική γλώσσα, γαλλίδα, γάλλοσ, francese, フレコン化 , 仏文 , フランス�" , 仏 , ふつぶ�", ふつ, フレンチ , フランセ , francês, francés, fransk, franska
German	wörterbuch, Übersetzung	tysker, Duitse, saksalainen, allemand, deutsch, Deutsche, �"ερμανός, tedesco, ジプシー音楽 , ジャーマン , alemão, alemán, tysk
Greek	λεξικό, ορισμός, μετάφραση	græker, kreikkalainen, grec, grieche, ελληνικόσ, 'Ελληνας, greco, ギリシア語 , ギリシア�", grego, griego, grek
Italian	dizionario, definizione, traduzione	italiener, italialainen, italien, italienisch, Ιταλός, italiano, italiensk, italienska, italienare
Japanese Kanji	辭典 , 辞典 , 字引 , 辞林 , 字書 , ディーゼル電気車 , 言海 , 辞彙 , 辞書 , 確定 , ディーゼル電気車 , デ�'ドロ酢酸 , 翻訳	japanilainen, Japonais, japaner, japanisch, ιαπωνικόσ, Ιάπωνας· �"ιαπωνέζος, ιάπωνεσ, ιάπων, ιαπωνικά, giapponese, 邦語 , 邦人 , ジャスミン茶 , ほう�", ジャパニーズ , ほうじ�", japonês, japonés, japansk
Japanese Katakana	じい, じびき, じて�", ディクショナリー , じり�", じしょ, �'�"かい, ディクショナリ , デフィニション , ディフィニション , ていぎ, かくてい, へい�"ういどう, やくじゅつ, トランスレーション , やくしょ, やくしゅつ, �"うどく, ほ�"やく, ほ�"やくしょ	japanilainen, Japonais, japaner, japanisch, ιαπωνικόσ, Ιάπωνας· �"ιαπωνέζος, ιάπωνεσ, ιάπων, ιαπωνικά, giapponese, 邦語 , 邦人 , ジャスミン茶 , ほう�", ジャパニーズ , ほうじ�", japonês, japonés, japansk
Portuguese	dicionário, definição, tradução	portugiser, portugalilainen, portugais, portugiesisch, πορτογάλοσ, � ορτογάλος, portoghese, ポルトガル語 , ポルトガル�", português, portugués, portugis
Spanish	diccionario, definición, traducción	Spaans, espanjalainen, espagnol, spanisch, ισπανικά, ισπανικόσ, ισπανοί, spagnolo, スペイン語 , スパイ罪 , スペイン�", スパニッシュ , espanhol, español, spanska språk, spansk
Swedish	ordbok, lexikon, definition, översättning	Zweeds, ruotsalainen, suédois, schwedisch, σουηδικόσ, σουηδικά, svedese, スウェーデン語 , スウェーデン�", sueco, svensk
English	Dictionary, Definition, Translation	englantia, englantilainen, anglais, englisch, εγγλέζοσ, αγγλικόσ, inglese, inglês, inglés, engelsk

Expression	Frequency per Day
circadian rhythm	97
circadian rhythm disorder	4
sleep circadian rhythm	3
circadian rhythm sleep disorder	2
Source: compiled by the editor from various references; see credits.

Circadian Rhythm

Definition: Circadian Rhythm