noun🔗ShareアプシスApsis"The Earth's orbit is not a perfect circle, so the distance to the sun changes, reaching its apsides – the closest (perihelion) and farthest (aphelion) points – at different times of the year. "地球の軌道は完全な円ではないため、太陽までの距離が変化し、1年の異なる時期にアプシス、つまり最も近い点（近日点）と最も遠い点（遠日点）に達します。astronomyphysicsspaceChat with AIVocabulary GamePractice Reading
noun🔗Share後陣A recess or projection, with a dome or vault, at the east end of a church; an apse."The architect pointed out the apsides at the east end of the cathedral, noting their beautiful vaulted ceilings. "建築家は、大聖堂の東端にある後陣を指し示し、その美しいアーチ型の天井に注目した。architecturereligionbuildingChat with AIVocabulary GamePractice Reading
noun🔗Shareアプシード、楕円軌道における太陽に最も近い点または最も遠い点Either of the points in the elliptical orbit of a planet or comet where it is closest or furthest from the sun; perihelion or aphelion; an apside"The satellite's apsides shifted slightly each orbit, meaning its closest and furthest points from Earth were gradually changing. "衛星のアプリードは各軌道ごとにわずかに移動し、地球からの最接近点と最遠点が徐々に変化していることを意味していました。astronomyspacephysicssciencepositionChat with AIVocabulary GamePractice Reading
