豆まめ石いしまめいしMeanings1nounpisolitemineralogyA sedimentary rock composed of small, pea-sized concretions; a technical term used in mineralogy and geology.この地ち域いきの地ち層そうから豆まめ石いしが発はっ見けんされた。Pisolite was discovered in the strata of this region.
