ortho-

combining form
🔊/ɔːθəʊ/, 🔊/ɔːθə/, 🔊/ɔːˈθɒ/
🔊/ɔːrθəʊ/, 🔊/ɔːrθə/, 🔊/ɔːrˈθɑː/
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  1. (in nouns, adjectives and adverbs构成名词、形容词和副词) correct; standard正确的;标准的
    • orthodox正统的
    • orthography正字法
    Word Originfrom Greek orthos ‘straight, right’.