無む脊せき椎つい動どう物ぶつMeaningsNoun1. invertebrate; invertebrates; invertebrataKanji used無nothing脊backbone椎part of the spine動move物thingPitch accentむせきついどうぶつComposed of無むnothing; naught; nought; nil; zero; un-; non-Noun脊せき椎つい動どう物ぶつvertebrate; vertebrates; vertebrataNoun