organism

[ awr-guh-niz-uhm ]
/ ˈɔr gəˌnɪz əm /

noun

a form of life composed of mutually interdependent parts that maintain various vital processes.
a form of life considered as an entity; an animal, plant, fungus, protistan, or moneran.
any organized body or system conceived of as analogous to a living being: the governmental organism.
any complex thing or system having properties and functions determined not only by the properties and relations of its individual parts, but by the character of the whole that they compose and by the relations of the parts to the whole.

Origin of organism

First recorded in 1655–65; organ + -ism

Related forms

or·gan·is·mic, or·gan·is·mal, adjectiveor·gan·is·mi·cal·ly, adverbsu·per·or·gan·ism, noun

Can be confused

organism orgasm
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for organism

British Dictionary definitions for organism

organism

/ (ˈɔːɡəˌnɪzəm) /

noun

any living biological entity, such as an animal, plant, fungus, or bacterium
anything resembling a living creature in structure, behaviour, etc

Derived Forms

organismal or organismic, adjectiveorganismally, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for organism

organism

[ ôrgə-nĭz′əm ]

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.

Related forms

or′gan•ismal (-nĭzməl) null adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for organism

organism

[ ôrgə-nĭz′əm ]

An individual form of life that is capable of growing, metabolizing nutrients, and usually reproducing. Organisms can be unicellular or multicellular. They are scientifically divided into five different groups (called kingdoms) that include prokaryotes, protists, fungi, plants, and animals, and that are further subdivided based on common ancestry and homology of anatomic and molecular structures.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.