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Definition of “root” - English Dictionary

"root" in American English

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rootnoun

us   /rut, rʊt/
  • root noun (PLANT PART)

[C] biology the part of a plant which grows down into the earth
[C] biology The root of a hair, tooth, or nail is the part of it that is inside the body.
  • root noun (ORIGIN)

[C] the origin or source of something: We must get to the root of this problem.
  • root noun (WORD)

[C] the basic form of a word, to which prefixes or endings can be added: The root of the word "sitting" is "sit."
  • root noun (number)

algebra a number that is the solution of an equation (= mathematical statement)
rooted
adjective [not gradable] us   /ˈrut̬·əd, ˈrʊt̬-/
deeply rooted loyalty

rootverb [I/T]

us   /rut, rʊt/
  • root verb [I/T] (PLANT PART)

(of a plant) to develop roots and begin to grow
(Definition of root from the Cambridge Academic Content Dictionary © Cambridge University Press)







"root" in British English

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rootnoun [C]

uk   /ruːt/ us   /ruːt/
  • root noun [C] (PLANT PART)

B2 the part of a plant that grows down into the earth to get water and food and holds the plant firm in the ground

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  • root noun [C] (OF WORD)

specialized language The root of a word is its most basic form, to which other parts, such as affixes, can be added: The root of the word "sitting" is "sit".

rootverb

uk   /ruːt/ us   /ruːt/
(Definition of root from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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