Wiktionary
n. (context anthropology religion English) Veneration of the spirits of one’s ancestors.
WordNet
n. worship of ancestors
Usage examples of "ancestor worship".
You remember what Abner Hale, he was my great-grandfather, wrote about such ancestor worship: 'I think it impedes Hawaii as much as any other one thing, for the poor fools are so attentive to their past that they have no time to contempkte eternity.
In common with nearly all races of Barsoom he clung, more or less inherently, to a certain exalted form of ancestor worship, though it was rather the memory or legends of the virtues and heroic deeds of his forebears that he deified rather than themselves.
At sight of the old man the warriors paused, for age is held in great veneration among the peoples of Barsoom, as is true, perhaps, of all peoples whose religion is based to any extent upon ancestor worship.
Unfortunately, the Church intervened and ordered that Chinese converts should be taught that the Christian God is personal, and that their ancestor worship was anti-Christian.
Over the centuries they've absorbed our obsession with ancestor worship, and she considers me a failure.