Meaning of MICRON in English


/muy"kron/ , n. , pl. microns, micra /-kreuh/ .

1. Also called micrometer . the millionth part of a meter. Symbol: µ, mu

2. Physical Chem. a colloidal particle whose diameter is between 0.2 and 10 microns.

3. Physics. a very small unit of pressure, equal to that exerted by a column of mercury 1µ high.

Also, mikron .

[ 1880-85; mikrón a little, n. use of neut. sing. of mikrós small; see -ON 1 ]

Random House Webster's Unabridged English dictionary.      Полный английский словарь Вебстер - Random House .