founding member
(geology) A kind of volcanic rock, of intermediate to felsic composition, with high strontium to yttrium ratio, and enriched in light rare earth elements compared with the heavy rare earths
A surname from Russian. (feminine form)
A box filled with dirt or sand for a captive animal to dig in as enrichment.
(US) A member of an organization that was involved in, or whose membership commenced with, the organization's foundation.
創設メンバーとして、彼女はその慈善団体の初期方針や支援活動の展開に貢献した。
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