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Definition of “science” - English Dictionary

"science" in American English

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sciencenoun [C/U]

 us   /ˈsɑɪ·əns/
the ​systematicstudy of the ​structure and ​behavior of the ​natural and ​physicalworld, or ​knowledgeobtained about the ​world by ​watching it ​carefully and experimenting: [U] Advances in ​medical science ​mean that ​people are ​livinglonger. [U] She ​shows a ​talent for ​math and science.
Sciences are also ​particularareas of science, such as ​biology, ​chemistry, and ​physics.
Science also refers to ​subjects which are ​studied like a science: [U] political/​computer science
(Definition of science from the Cambridge Academic Content Dictionary © Cambridge University Press)







"science" in British English

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sciencenoun

uk   /ˈsaɪ.əns/  us   /ˈsaɪ.əns/
A2 [U] (​knowledge from) the ​carefulstudy of the ​structure and ​behaviour of the ​physicalworld, ​especially by ​watching, ​measuring, and doing experiments, and the ​development of ​theories to ​describe the ​results of these ​activities: pure/​applied science recentdevelopments in science and ​technology Space ​travel is one of the ​marvels/​wonders of ​modern science.
B1 [C or U] a ​particularsubject that is ​studied using ​scientificmethods: physical sciences Economics is not an exact science. advances in medical science
A2 [U] the ​study of science: a science graduate/​teacherteacher a science course/​lesson

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(Definition of science from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)

"science" in Business English

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sciencenoun

uk   us   /saɪəns/
[U] the careful ​study of the ​structure and ​behaviour of the ​world, especially by doing experiments: pure/​applied science Space ​travel is one of the wonders of modern science. Advances in science and ​technology are ​opening the way for new ​treatments. a science teacher/degree
[U] a ​subject that is ​studied using scientific ​methods: medical/forensic science
[C] a ​subject such as ​physics, chemistry, or biology: He ​studied sciences at California ​Institute of Technology.
(Definition of science from the Cambridge Business English Dictionary © Cambridge University Press)
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“science” in Business English

There, their and they’re – which one should you use?
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