occultationn.
英 ,ɒkəl'teɪʃən | 美 ,ɑkʌl'teʃən
中文n. [天] 掩星；掩蔽
词根词源
occultation (n.)early 15c., "disguise or concealment of identity," from Latin occultationem (nominative occultatio), noun of action from past participle stem of occultare "to hide, conceal," frequentative of occulere (see occult).
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