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1. An individual form of life, such as a bacterium, protist, fungus, plant, or animal, composed of a single cell or a complex of cells in which organelles or organs work together to carry out the various processes of life.
2. A system regarded as analogous in its structure or functions to a living body: the social organism.

or′gan·is′mal (-nĭz′məl), or′gan·is′mic (-mĭk) adj.
or′gan·is′mi·cal·ly adv.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.organismal - of or relating to or belonging to an organism (considered as a whole); "the organismic theory of the state"
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References in periodicals archive ?
Written and edited by experts in the field, "Size Control in Biology: From Organelles to Organisms" is comprised of a collection of articles from Cold Spring Harbor Perspectives in Biology which examines our current understanding of the intrinsic and extrinsic mechanisms that precisely regulate the sizes of biological structures so that they can function efficiently in their cellular, organismal, or ecological context.
temperature and ocean acidification, and organismal performance of an ecologically and economically highly important group of aquatic arthropods.
Daniel Huber, Leslie Jones and Christine Helminski present an interesting series of lessons in which geometry is used to model the suction feeding mechanism of the Goliath Grouper, and to explore the consequences of geometric variability for organismal performance.
This year's Lasker Awards are given to Witkin and Elledge for laying the conceptual and experimental foundation that led to our understanding of the intricately organized systems that ensure genetic fidelity and safeguard organismal vitality.
By manipulating this new pathway, we could switch between energy storage and energy dissipation programs at both the cellular and the organismal level, providing new hope for a cure against obesity," Kellis says.
I believe organismal development is one of the most wonderful processes in nature.
We consistently find with every new fossil that the earliest mammals were just as diverse in both feeding and locomotor adaptations as modern mammals," says Zhe-Xi Luo, professor of organismal biology and anatomy at the University of Chicago.
Extraction of the microremains and mechanical preparation of each scale for geochemical analyses was performed at the Department of Earth Sciences and the Department of Organismal Biology (Uppsala University, Sweden) and at the Imaging and Analysis Center (Natural History Museum of London, UK).
Currently, the NSF Division of Integrative Organismal Systems and Division of Environmental Biology are piloting a pre-proposal program that requires only a one-page summary and five-page project description for review.
Living primates have obvious importance for understanding Diodiversity and organismal biology.
To explore the potential effects of increasing temperature variation in a natural community, we implemented a novel manipulation to alter local thermal regimes in the marine rocky intertidal zone, a model system for the experimental investigation of organismal responses to environmental stress.
This illustrated, 590 page compendium is comprised of thirty-two seminal research articles by experts in the field and 'covers all of the major pathways of endocytosis and postendocytic trafficking and how they regulate cellular and organismal physiology.

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