organism
OR-guh-niz-um
/ˈɔːrɡənɪzəm/
An individual animal, plant, or single-celled life form.
Refers to any living entity, from the simplest bacterium to the most complex mammal, emphasizing its individual and complete nature.
The story behind the word. 'Organism' traces its roots back to the Greek organon, meaning 'instrument' or 'tool,' which later evolved into the Latin organum. The idea is that a living being is a complex system of 'organs' or 'instruments' working together in a structured way to sustain life, much like a finely tuned machine.
Word relationships
- living being: More general and less scientific.
- life form: Similar in meaning, often used in speculative contexts.
- inanimate object: Refers to something non-living.
Word family
- organic (adjective): Relating to or derived from living matter.
- organize (verb): To arrange into a structured whole.
Collocations
- living organism
- microorganism
- complex organism
- multicellular organism
Example sentences
- "A single-celled bacterium is an organism, just as a giant redwood tree or a human being is." Discussing the diversity of life.
- "The scientists studied how this unique deep-sea organism adapted to extreme pressure and lack of light." Referring to a living being.
Memory hook
An 'organism' is organized with 'organs' to live. Organized life.
When not to use
Avoid using 'organism' for non-living entities, abstract concepts, or inanimate objects; it specifically denotes a living being.
Fun facts
- The largest single organism by mass is a fungus in Oregon, covering 2,200 acres.
- Some organisms can survive in extreme environments, from volcanic vents to frozen tundras.
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