# microscopic

/ˌmaɪkɹəˈskɑpɪk/ (US) · /mˌaɪkɹəskˈɒpɪk/ (UK) · CEFR B2 · Adjective

Source: https://englishreference.com/word/microscopic
Updated: 2026-05-06

## Definition

so small that you cannot see it without using a microscope. It can also describe something that is extremely tiny or detailed.

For teachers: invisible to the naked eye; requiring a microscope for observation. Often used figuratively to describe something exceptionally small or minute in scale.

## Examples

- The doctor found microscopic traces of bacteria in the sample.
- Even a microscopic crack in the airplane's wing can lead to serious structural failure over time.
- The forensic team spent weeks examining microscopic fibers found at the scene, hoping to link the suspect to the specific upholstery of the getaway vehicle.

## Usage notes

- Typically used attributively before a noun; can be modified by adverbs like 'purely' or 'virtually'.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.