比ひ例れい中ちゅう項こうひれいちゅうこうMeanings1nounmean proportional; geometric meanMathematical term for the geometric mean, especially in the context of proportions. Used in geometry and algebra.比ひ例れい中ちゅう項こうは、二ふたつの数すうの積せきの平へい方
