noun
- animals that do not have a backbone or spinal column
Usage: biology
Examples
- Insects, spiders, and worms are all invertebrates.
- The ocean is home to countless invertebrates like jellyfish and sea urchins.
- Scientists estimate that invertebrates make up about 97% of all animal species.
- The biology class studied various invertebrates under the microscope.
- Coral reefs support diverse communities of colorful invertebrates.
- Many invertebrates have exoskeletons instead of internal bones.