天てん柱じMeanings1nountuning peg (biwa, shamisen)rare termRare term for the tuning pegs on traditional Japanese lutes such as the biwa or shamisen. Also written 転手.See also: 転手琵び琶わの天てん柱じを回まわして調ちょう弦げんする。Tune the biwa by turning its tuning pegs.