VOOZH about

URL: https://www.wordreference.com/definition/micra

⇱ micra - WordReference.com Dictionary of English

micra

US:USA pronunciation: respellingUSA pronunciation: respelling(mī′krə)

From micron (n):
microns
npl
micra
npl

WordReference Random House Unabridged Dictionary of American English © 2026
mi•cra  (mī′krə),USA pronunciation n. 
  1. Physicsa pl. of micron. 

WordReference Random House Learner's Dictionary of American English © 2026
mi•cron /ˈmaɪkrɑn/USA pronunciation   n. [countable], pl. -crons, -cra /-krə/.USA pronunciation  
  1. Weights and Measuresthe millionth part of a meter.

WordReference Random House Unabridged Dictionary of American English © 2026
mi•cron  (mī′kron),USA pronunciation n., pl. -crons, -cra (-krə).USA pronunciation 
  1. Weights and MeasuresAlso called micrometer. the millionth part of a meter. Symbol: μ, mu
  2. Chemistry[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. 
  • Greek mīkrón a little, noun, nominal use of neuter singular of mīkrós small; see -on1
  • 1880–85

Collins Concise English Dictionary © HarperCollins Publishers::
micron /ˈmaɪkrɒn/ n ( pl -crons, -cra /-krə/)
  1. a unit of length equal to 10–6 metre. It is being replaced by the micrometre, the equivalent SI unit
Etymology: 19th Century: New Latin, from Greek mikros small

Forum discussions with the word(s) "micra" in the title:


Look up "micra" at Merriam-Webster
Look up "micra" at dictionary.com
  • Go to Preferences page and choose from different actions for taps or mouse clicks.

In other languages: Spanish | French | Italian | Portuguese | Romanian | German | Dutch | Swedish | Russian | Polish | Czech | Greek | Turkish | Chinese | Japanese | Korean | Arabic

Advertisements
Advertisements
Report an inappropriate ad.
WordReference.com
WORD OF THE DAY
GET THE DAILY EMAIL!
Become a WordReference Supporter to view the site ad-free.
Firefox users: use search shortcuts for the fastest search of WordReference.
Copyright © 2026 WordReference.com
Please report any problems.