Meaning of 皇霊祭 in Japanese

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Definition of 皇霊祭

こうれいさい(koureisai) 【皇霊祭】

(n) equinoctial ceremony held by the emperor at the shrine of imperial ancestors

しゅんきこうれいさい(shunkikoureisai) 【春季皇霊祭】

(n) imperial ceremony of ancestor worship formerly held on the vernal equinox →Related words: 春分の日

しゅうきこうれいさい(shuukikoureisai) 【秋季皇霊祭】

(n) imperial ceremony of ancestor worship formerly held on the autumnal equinox →Related words: 秋分の日