lacking a backbone or spinal column; worms are an example of invertebrate animals
[ Syn: spineless ]
invertebrate (adj.)
any animal lacking a backbone or notochord; the term is not used as a scientific classification
lacking a backbone or spinal column; worms are an example of invertebrate animals
[ Syn: spineless ]
any animal lacking a backbone or notochord; the term is not used as a scientific classification