apsis

名词 n.
中文释义

英文释义

名词 n.
  1. A recess or projection, with a dome or vault, at the east end of a church.
    — Like Henry's collegiate church […] the cathedral is a cruciform basilica of the double bay system with four square bays in the central nave, western transoms, a quadrum for the choir, an apsis, and a transept with auxiliary apses.
  2. Either of the points in the elliptical orbit of a planet, comet, or moon where it is closest or furthest from the body it orbits; examples are perihelion, aphelion, perigee, and apogee.

词形变化

apsides plural apses plural

词汇关系

衍生词
apoapsis periapsis synapsis

词源

From Latin apsis, hapsis, from Ancient Greek ἁψίς (hapsís, “arch, vault”). See also apse.
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