1 ผลลัพธ์ สำหรับ *protoconch*
หรือค้นหา: protoconch, -protoconch-

Collaborative International Dictionary (GCIDE)
Protoconch

n. [ Proto- + conch. ] (Zool.) The embryonic shell, or first chamber, of ammonites and other cephalopods. [ 1913 Webster ]


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