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Noun, pl. organisms

1. An individual animal, plant, or single-celled life form. (

2. The material structure of such an individual. (

3. Any contiguous living system (such as animal, fungus, micro-organism, or plant). In at least some form, all types of organisms are capable of response to stimuli, reproduction, growth and development, and maintenance of homeostasis as a stable whole.(

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


Word origin: Greek ὀργανισμός – organismos, from Ancient Greek ὄργανον – organon (instrument, implement, tool, organ of sense or apprehension)

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