invertebrate
/ɪnˈvɜrtəbrət/
adjective
- Lacking a backbone; relating to animals without a spine.
- The invertebrate group includes many fascinating creatures.
- She studied invertebrate biology in college.
- Invertebrate animals often have exoskeletons or soft bodies.
noun
- An animal that does not have a backbone or spinal column.
- The ocean is home to millions of invertebrate species.
- Invertebrates make up about 95% of all animal species on Earth.
- Insects, jellyfish, and worms are all invertebrates.
Antonyms