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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