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Words That Start With Micro

97 words Words by letter Checked 9 Oct 2026

Here are 97 words that start with micro, from everyday words to rare ones that are still valid in word games. Common words come first with a short meaning, then the words are grouped by length, which helps with Wordle and crossword clues.

As a prefix, micro means "very small", as in microscope and microchip.

Words starting with micro
97
Most used
microwave
Shortest
micron
5 letter words
0

Common words that start with micro

#WordMeaningLetters
1microwavea short electromagnetic wave (longer than infrared but shorter than radio waves)9
2microphonedevice for converting sound waves into electrical energy10
3microscopemagnifier of the image of small objects10
4microscopicof or relating to or used in microscopy11
5microbialof or involving or caused by or being microbes9
6microscopyresearch with the use of microscopes10
7microbiologythe branch of biology that studies microorganisms and their effects on humans12
8microbesa minute life form (especially a disease-causing bacterium); the term is not in technical use8
9microphonesdevice for converting sound waves into electrical energy11
10microorganismsany organism of microscopic size14
11microprocessorintegrated circuit semiconductor chip that performs the bulk of the processing and controls the parts of a...14
12microchipelectronic equipment consisting of a small crystal of a silicon semiconductor fabricated to carry out a...9
13microna metric unit of length equal to one millionth of a meter6
14microwavesa short electromagnetic wave (longer than infrared but shorter than radio waves)10
15microcosma miniature model of something9
16micronsa metric unit of length equal to one millionth of a meter7
17microfilmfilm on which materials are photographed at greatly reduced size9
18microscopesmagnifier of the image of small objects11
19microbea minute life form (especially a disease-causing bacterium); the term is not in technical use7
20microgramsone millionth (1/1,000,000) gram10
21microprocessorsintegrated circuit semiconductor chip that performs the bulk of the processing and controls the parts of a...15
22microelectronicsthe branch of electronics that deals with miniature components16
23micrometersa metric unit of length equal to one millionth of a meter11
24microtubulesa microscopically small tubule12
25microbiologista specialist in microbiology14
26microchipselectronic equipment consisting of a small crystal of a silicon semiconductor fabricated to carry out a...10
27micronutrientsa substance needed only in small amounts for normal body function (e.g., vitamins or minerals)14
28micrometera metric unit of length equal to one millionth of a meter10
29microorganismany organism of microscopic size13
30microtubulea microscopically small tubule11
31microcomputera small digital computer based on a microprocessor and designed to be used by one person at a time13
32microsecondsone millionth (10^-6) of a second; one thousandth of a millisecond12
33microwavedcook or heat in a microwave oven10
34microeconomicsthe branch of economics that studies the economy of consumers or households or individual firms14
35microscopicallyby using a microscope; so as to be visible only with a microscope; as seen with a microscope15
36microcephalyan abnormally small head and underdeveloped brain12
37microsecondone millionth (10^-6) of a second; one thousandth of a millisecond11
38micronutrienta substance needed only in small amounts for normal body function (e.g., vitamins or minerals)13
39microbrewerya small brewery; consumption of the product is mainly elsewhere12
40microwavingcook or heat in a microwave oven11
41microcomputersa small digital computer based on a microprocessor and designed to be used by one person at a time14
42microeconomicof or relating to microeconomics13
43microfichesmall sheet of microfilm on which many pages of material have been photographed10
44microbiologistsa specialist in microbiology15
45microelectronicof or relating to or consisting of miniature electronic components15
46microbreweriesa small brewery; consumption of the product is mainly elsewhere14
47microsurgerysurgery using operating microscopes and miniaturized precision instruments to perform intricate procedures on...12
48microcode(computer science) coded instructions that are stored permanently in read-only memory9
49microfloramicroscopic plants; bacteria are often considered to be microflora10
50microcrystallinecontaining crystals that are visible only under a microscope16

6 letter words that start with micro

  • micron
  • micros

7 letter words that start with micro

  • microns
  • microbe

8 letter words that start with micro

  • microbes
  • microbus

9 letter words that start with micro

  • microwave
  • microbial
  • microchip
  • microcosm
  • microfilm
  • microcode
  • microform
  • microbrew
  • microgram

10 letter words that start with micro

  • microphone
  • microscope
  • microscopy
  • microwaves
  • micrograms
  • microchips
  • micrometer
  • microwaved
  • microfiche
  • microscale
  • microflora
  • microfilms
  • micrograph
  • microprobe
  • microsomal
  • micronized
  • microtonal
  • microburst
  • microbrews
  • microcosms
  • microsomes

11 letter words that start with micro

  • microscopic
  • microphones
  • microscopes
  • micrometers
  • microtubule
  • micromanage
  • microsecond
  • microwaving
  • micrographs
  • microcosmic
  • microfilmed
  • microporous
  • microstates

12 letter words that start with micro

  • microbiology
  • microgravity
  • microtubules
  • microseconds
  • microclimate
  • microcephaly
  • microbrewery
  • microspheres
  • microsurgery
  • microfossils
  • microwavable
  • micromanaged

Filter all 97 words that start with micro

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    Questions people ask

    How many words start with micro?

    This list has 97 words starting with micro, all from a standard word-game dictionary and all seen in real English text.

    What are common words that start with micro?

    microwave, microphone, microscope, microscopic, microbial, microscopy, microbiology, microbes.

    What does the prefix micro mean?

    As a prefix, micro means "very small", as in microscope and microchip.

    Source: the ENABLE word list (a public-domain dictionary used for word games), ranked by how often each word appears in English text (the open wordfreq project), with short meanings from Princeton WordNet. Offensive words are left out.

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