名詞 invertebrate:

1. any animal lacking a backbone or notochord; the term is not used as a scientific classification

形容詞 invertebrate:

1. lacking a backbone or spinal column
   同義詞：spineless

1. Molluscs, insects and worms are all invertebrates.
   軟體動(dòng)物、 昆蟲、 蠕蟲都是無(wú)脊椎動(dòng)物。

in.ver.te.brate

adj.（形容詞）
Lacking a backbone or spinal column; not vertebrate.
無(wú)脊椎的：缺少脊骨或脊柱的；無(wú)脊椎的
Of or relating to invertebrates:
無(wú)脊椎動(dòng)物的：屬于或關(guān)于無(wú)脊椎動(dòng)物的：
例句：
invertebrate zoology.
無(wú)脊椎動(dòng)物的動(dòng)物特性

n.（名詞）
An animal, such as an insect or a mollusk, that lacks a backbone or spinal column.
無(wú)脊椎動(dòng)物：缺少脊骨或脊柱的動(dòng)物，例如昆蟲或軟體動(dòng)物