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hectare

noun
🔊/ˈhekteə(r)/, 🔊/ˈhektɑː(r)/
🔊/ˈhekter/
(abbreviation ha)
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  1. a unit for measuring an area of land; 10 000 square metres or about 2.5 acres公顷（土地丈量单位，等于 1 万平方米或约 2.5 英亩）Topics Maths and measurementc1
    Word Originearly 19th cent.: from French, formed irregularly from Greek hekaton ‘hundred’ + are2.