天てん平ぴょう尺じゃくMeanings1nounTenpyō shaku (approx. 29.6 cm)archaicArchaic unit of length used in the Nara period, based on the Tang dynasty shaku. Not in modern use.天てん平ぴょう尺じゃくは奈な良ら時じ代だいに用もちいられた長ながさの単たん位いである。The Tenpyō shaku is a unit of length used in the Nara period.