ENGLISH
REFERENCE

micron

n.
C1 Advanced US //ˈmaɪˌkɹɑn// UK //mˈaɪkɹɒn// mi·cron

n. a very small unit of length, equal to one millionth of a meter. It is often used to describe the size of tiny things like dust, hair, or electronic parts.

n. a metric unit of length equal to one millionth of a meter (10^-6 m). Often used in technical contexts to describe the diameter of particles, the thickness of materials, or the resolution of optical instruments.


SIMPLE

The filter can trap particles as small as one micron.

CONTEXTUAL

The manufacturer specifies that the screen should have a resolution of at least 100 pixels per micron to ensure sharp images.

COMPLEX

In semiconductor manufacturing, the ability to etch features at the sub-micron scale is essential for producing the increasingly powerful microprocessors that power modern computers.

Synonyms
Etymology 1

From French micron, from Ancient Greek μικρόν (mikrón), neuter of μικρός (mikrós, “small”).

Etymology 2

From Ancient Greek μικρόν (mikrón), neuter of μικρός (mikrós, “small”).

© 2026 English Reference