English

eclipse noun definition in The sun and the moon topic from the Oxford Advanced Learner's Dictionary

eclipse

 noun: The sun and the moon topic
[countable] an occasion when the moon passes between the earth and the sun so that you cannot see all or part of the sun for a time; an occasion when the earth passes between the moon and the sun so that you cannot see all or part of the moon for a time an eclipse of the sun/moon a total/partial eclipse