Definition of approximate adjective from the Oxford Advanced Learner's Dictionary

    

approximate

 adjective
adjective
 
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BrE BrE//əˈprɒksɪmət//
 
; NAmE NAmE//əˈprɑːksɪmət//
 
almost correct or accurate, but not completely so an approximate number/total/cost The cost given is only approximate. Use these figures as an approximate guide in your calculations. Construction was completed at an approximate cost of $4.1 million. opposite exact
Word Origin late Middle English (in the adjectival sense ‘close, similar’): from late Latin approximatus, past participle of approximare, from ad- ‘to’ + proximus ‘very near’. The verb (originally meaning ‘bring close’) arose in the mid 17th cent.; the current use as an adjective dates from the early 19th cent.
See the Oxford Advanced American Dictionary entry: approximate

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