This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. An individual form of life, such as a plant, animal, bacterium, protist, or fungus; a body made up of organs, organelles, or other parts that work together to carry on the various processes of life.

n. A system regarded as analogous in its structure or functions to a living body: the social organism.

n. A discrete and complete living thing, such as animal, plant, fungus or microorganism.

n. Any complex thing with properties normally associated with living things.

n. Organic structure; organization.

n. 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.

n. Organic structure; organization.

n. A body exhibiting organization and organic life; a member of the animal or vegetable kingdom; an individual composed of a number of essential and mutually dependent parts, all of which partake of a common life.

n. Anything that is organized or organic.

n. a living thing that has (or can develop) the ability to act or function independently

n. a system considered analogous in structure or function to a living body

"The Geology paper adds a new line of evidence indicating that the organism is a fungus."

system    scheme   

organismal    free-living organism    organismic   

organization    system    animal    plant   

microorganism   

bacteria    being    entity    insect    species    organ    civilization    virus    structure    substance