这个词是什么意思？
A class in the phylum MOLLUSCA comprised of mussels; clams; OYSTERS; COCKLES; and SCALLOPS. They are characterized by a bilaterally symmetrical hinged shell and a muscular foot used for burrowing and anchoring.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D049872 · MeSH 2026。
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