Definition of submicron in English:

submicron

noun

  • 1A particle less than a micron in size.

  • 2A measure of length equal to one tenth of a micron (1 × 10−7 metre).

adjective

  • Less than a micron in size or length; relating to or involving such a size.

Origin

Early 20th century; earliest use found in Science. From sub- + micron.

Pronunciation

submicron

/sʌbˈmʌɪkrɒn/