phylum

n (pl -la / -lE; -lE/) (biology 生) major division in the animal or plant kingdom （动物或植物分类上的）门: The mollusc phylum includes all soft-bodied animals without backbones. 软体动物门包括所有无脊椎的软体动物. Cf 参看 class 7, order1 9, family 4, genus 1, species 1.

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