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Definition of definition noun from the Oxford Advanced American Dictionary

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definition

noun
/ˌdɛfəˈnɪʃn/ definition pronunciation American
 
1 [countable, uncountable] an explanation of the meaning of a word or phrase, especially in a dictionary; the act of stating the meanings of words and phrasesclear simple definitionsNeighbors by definition live close by (= this is what being a neighbor means).2 [countable] what an idea, etc. meansWhat's your definition of happiness?There is no agreed definition of what a comprehensive school should be.3 [uncountable] the quality of being clear and easy to seeDigital TV screens have excellent definition. see also HD
Usage notesLanguage Bank: definedefining termsIt is important to clarify what is meant by climate change.Climate change can/may be defined as “the long-term fluctuations in temperature, precipitation, wind, and other aspects of the earth's climate.”A generally accepted definition of global warming is the gradual increase in the overall temperature of the earth's atmosphere due to the greenhouse effect.The greenhouse effect is defined by the author as the process by which heat from the sun is trapped in the earth's atmosphere, causing the temperature of the earth to rise.The author uses the term “climate change” to refer to any significant change in measures of climate lasting for an extended period.The term “carbon footprint” refers to the amount of carbon dioxide released into the atmosphere as a result of the activities of an individual or organization.Scientists suggest that increased carbon dioxide in the atmosphere will result in an increase in global temperatures, and the term “global warming” is used to describe this phenomenon.⇨ Language Bank at first