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.

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microenvironment British  

/ ˈmaɪkrəʊɪnˌvaɪrənmənt /

noun

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

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microenvironment Scientific  

/ mī′krō-ĕn-vī′rən-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

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Other Word Forms

• microenvironmental adjective

Etymology

Origin of microenvironment

First recorded in 1950–55; micro- + environment

Example Sentences

By entering the tumor microenvironment, retinoic acid suppresses immune responses, including the activity of T cells that normally target cancer.

From Science Daily • Jan. 16, 2026

These biofilms are sticky coatings that wrap around the bacteria, producing a low-oxygen microenvironment suitable for nitrogenase activity.

From Science Daily • Nov. 24, 2025

"But if this stress stays there, which it does in the tumor microenvironment, the cells are just in continuous stress, and that will then lead to a very different phenotype and death," Mehrotra said.

From Science Daily • Nov. 22, 2024

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.