avertebratedadj.
/əˈvəːtɪbreɪtɪd/ rare.
Invertebrate.
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the world > animals > invertebrates > [adjective]
invertebral1804
invertebrated1809
invertebrate1819
avertebrated1860
askeletal1887
backboneless1925
1860 Encycl. Brit. XXI. 974/2 Very few avertebrated animals are vermiparous.
This entry has not yet been fully updated (first published 1885; most recently modified version published online June 2021).
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adj.1860