higher organism
nounUK /ˈhaɪ.ər ˈɔː.ɡən.ɪ.zəm/
US /ˈhaɪ.ɚ ˈɔːr.ɡən.ɪ.zəm/
A living thing with many cells and complex body parts, like an animal or a plant.
A dog is a higher organism because it has a brain, a heart, and many other parts.
OTHER MEANINGS
2. An organism whose cells have a nucleus and other special parts inside them.
Scientists studied the higher organism under a microscope to see its cells.
3. A life form that is more developed or complicated than simple ones like bacteria.
Frogs are higher organisms compared with the tiny bacteria in pond water.
4. In biology class, any plant or animal made of many cells working together.
The teacher explained that a tree is a higher organism just like a bird.