extroversionn.
英 ,ekstrəʊ'vɜːʃən | 美 ,ɛkstro'vɝʃən
中文n. [心理] 外向性；[医] 外翻
词根词源
extroversion (n.)mid-17c., "condition of being turned inside out," noun of action from obsolete verb extrovert (v.) "to turn inside out," from extro- + Latin vertere (see versus). Earliest as a word in mysticism; modern use in psychology attested by 1920.
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