行動の定義と意味 | Dictionary.com

BEHAVIOR Definition & Meaning | Dictionary.com Synonyms behavior American [bih- heyv -yer] / bɪˈheɪv yər / especially British, behaviour noun manner of behaving or acting. Synonyms: carriage , bearing , demeanor Psychology, Animal Behavior. observable activity in a human or animal. the aggregate of responses to internal and external stimuli. a stereotyped, species-specific activity, as a courtship dance or startle reflex. Often behaviors. a behavior pattern. the action or reaction of any material under given circumstances. the behavior of tin under heat. behavior Scientific / bĭ-hāv ′ yər / The actions displayed by an organism in response to its environment. One of these actions. Certain animal behaviors (such as nest building) result from instinct , while others (such as hunting) must be learned. The manner in which a physical system, such as a gas, subatomic particle, or ecosystem, acts or functions, especially under specified conditions. behavior Idioms see on one's best behavior . Related Words Behavior, conduct, deportment, comportment refer to one's actions before or toward others, especially on a particular occasion. Behavior refers to actions usually measured by commonly accepted standards: His behavior at the party was childish. Conduct refers to actions viewed collectively, especially as measured by an ideal standard: Conduct is judged according to principles of ethics. Deportment is behavior related to a code or to an arbitrary standard: Deportment is guided by rules of etiquette. The teacher gave Susan a mark of B in deportment. Comportment is behavior as viewed from the standpoint of one's management of one's own actions: His comportment was marked by a quiet assurance. Other Word Forms behavioral adjective interbehavior noun Etymology Origin of behavior First recorded in 1375–1425; behave ( def. ) + -ior (on model of havior, variant of havor, from Middle French (h)avoir “a having,” ultimately from Latin habēre “to have”); replacing late Middle English behavoure, behaver; see -or 1 ( def. ) Explanation Behavior refers to how you conduct yourself. Generally, it’s wise to engage in good behavior , even if you're really bored. The noun behavior is a spin-off of the verb behave . Get rid of the be in behave and you're left with have , which makes sense: you could say that to behave is to "have" or "own" yourself — to control yourself. There's also a broader definition of behavior , which is basically anything any living thing does in any situation. Brushing your teeth? Behavior. Scratching your nose? Behavior. Eating a large antelope because you are a lion and you're hungry? Also behavior. Keep Reading on Vocabulary.com Vocabulary lists containing behavior "Julius Caesar" by William Shakespeare, Act I Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide! Growth, Development and Reproduction of Organisms - Middle School Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use! Growth, Development and Reproduction of Organisms - Introductory Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time! Example Sentences Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com. In addition, GLP-1 receptor agonists were associated with a reduced risk of suicidal behavior. From Science Daily • May 4, 2026 When we move forward, in body, behavior and thought, vitality follows. From The Wall Street Journal • May 3, 2026 By building on earlier ideas that quantum mechanics might be part of a deeper theory, the new research points to possible links between quantum behavior, gravity, and the flow of time itself. From Science Daily • May 3, 2026 That’s according to a fascinating study of how investors’ behavior changes when they stop thinking short-term and see investments with a time horizon of more than 12 months. From MarketWatch • May 2, 2026 Laszlo kept a watchful eye on Bobby’s behavior toward the three sisters. From "Endgame" by Frank Brady Related Words act action attitude conduct demeanor management nature performance practice presence role style Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023 Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.