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microenvironment

American  
[mahy-kroh-en-vahy-ern-muhnt, -vahy-ruhn-] / ˌmaɪ kroʊ ɛnˈvaɪ ərn mənt, -ˈvaɪ rən- /

noun

  1. the environment of a small area or of a particular organism; microhabitat.


microenvironment British  
/ ˈmaɪkrəʊɪnˌvaɪrənmənt /

noun

  1. ecology the environment of a small area, such as that around a leaf or plant

"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

microenvironment Scientific  
/ mī′krō-ĕn-vīrən-mənt /
  1. The environment of a very small, specific area, distinguished from its immediate surroundings by such factors as the amount of incident light, the degree of moisture, and the range of temperatures. The side of a tree that is shaded from sunlight is a microenvironment that typically supports a somewhat different community of organisms than is found on the side that receives regular light.

  2. Also called microhabitat


Other Word Forms

  • microenvironmental adjective

Etymology

Origin of microenvironment

First recorded in 1950–55; micro- + environment

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Their work centers on understanding how cancer cells interact with their surroundings, often referred to as the tumor microenvironment.

From Science Daily • Apr. 12, 2026

Chroococcidiopsis releases oxygen, helping create a more supportive microenvironment for Sporosarcina pasteurii.

From Science Daily • Jan. 6, 2026

"However, when viewed in the context of changes in the T cell and stromal compartments, it underlines the importance of the bone marrow microenvironment in shaping disease progression."

From Science Daily • Nov. 19, 2025

Both T-cells and CAR-T cells can become "exhausted" in the hostile tumor microenvironment.

From Science Daily • Nov. 22, 2024

Such a closed nest would have the advantage of greatly moderating the microenvironment within the nest, and would allow the animal within to remain comfortable with a minimum expenditure of energy.

From Comparative Ecology of Pinyon Mice and Deer Mice in Mesa Verde National Park, Colorado by Douglas, Charles L.