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单词 micro-
释义

WordReference Random House Learner's Dictionary of American English © 2024
micro-, prefix. 
    • micro- comes from Greek, where it has the meaning: small or very small in comparison with others of its kind:micro- + organism → microorganism (= very small living creature).
    • micro- also means restricted in scope:micro- + habitat → microhabitat;micro- + economics → microeconomics.
    • micro- also means containing or dealing with texts that require enlargement to be read:micro- + film → microfilm.
    • micro- is used to mean one millionth:micro- + gram → microgram.
Also,[esp. before a vowel,] micr-. 
Collins Concise English Dictionary © HarperCollins Publishers::
micro-, micr- combining form
  1. small or minute: microspore
  2. involving the use of a microscope: micrography
  3. indicating a method or instrument for dealing with small quantities: micrometer
  4. (in pathology) indicating abnormal smallness or underdevelopment: microcephaly, microcyte
  5. denoting 10–6: microsecond
    Symbol: μ
Etymology: from Greek mikros small
WordReference Random House Unabridged Dictionary of American English © 2024
mi•cro  (mīkrō),USA pronunciation adj., n., pl. -cros. 
adj. 
  1. extremely small.
  2. minute in scope or capability.
  3. Computingof or pertaining to microcomputers.
  4. of or pertaining to microeconomics.

n. 
  1. anything extremely small in scope or capability.
  2. Computinga microcomputer.
  3. microeconomics.
  • independent use of micro-, or shortening of words with this initial element

micro-, 
  1. a combining form with the meanings "small'' (microcosm;
    microgamete
    ), "very small in comparison with others of its kind'' (microcassette;
    microlith
    ), "too small to be seen by the unaided eye'' (microfossil;
    microorganism
    ), "dealing with extremely minute organisms, organic structures, or quantities of a substance'' (microdissection;
    microscope
    ), "localized, restricted in scope or area'' (microburst;
    microhabitat
    ), "(of a discipline) focusing on a restricted area'' (microeconomics), "containing or dealing with texts that require enlargement to be read'' (microfilm;
    microreader
    ), "one millionth'' (microgram).
Also,[esp. before a vowel,] micr-. 
  • Greek: combining form representing mīkrós small

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更新时间:2024/9/21 12:29:53