天てん文もん道どうじ字FuriganaAudioMeanings1nountenmondō; form of astrologyhistorical termHistorical term for a specific form of astrology practiced in pre-modern Japan, often associated with Onmyōdō. Not used in modern contexts.平へい安あん時じ代だいには、天てん文もん道どうが陰陽寮おんみょうりょうで教おしえられていた。Break this sentence down in the analyzerIn the Heian period, tenmondō was taught at the Onmyōryō (Bureau of Divination).