字典词典单词成语造句名言诗词古籍小说

apsis

英 ['æpsɪs] 美 ['æpsɪs]

n. 教堂东端之半圆室；[天] 拱点

英文词源

apsis (n.): "perigree of the moon, perihelion of a planet" (plural apsides), 1650s, from Latin apsis "arch, vault" (see apse).