Organism
Organism , noun
[Compare French organisme.]
1.
Organic structure; organization.
The advantageous organism of the eye.
2.
(Biology) An organized being; a living body, either vegetable or animal, composed of different organs or parts with functions which are separate, but mutually dependent, and essential to the life of the individual.
Some of the lower forms of life are so simple in structure as to be without organs, but are still called organisms, since they have different parts analogous in functions to the organs of higher plants and animals.