microbe

play
noun mi·crobe \ˈmī-ˌkrōb\

Definition of microbe

microbial

play \mī-ˈkrō-bē-əl\ or less commonly

microbic

play \-bik\ adjective

Recent Examples of microbe from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'microbe'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Did You Know?

A hint of the Greek word bios, meaning "life", can be seen in microbe. Microbes, or microorganisms, include bacteria, protozoa, fungi, algae, amoebas, and slime molds. Many people think of microbes as simply the causes of disease, but every human is actually the host to billions of microbes, and most of them are essential to our life. Much research is now going into possible microbial sources of future energy; algae looks particularly promising, as do certain newly discovered or created microbes that can produce cellulose, to be turned into ethanol and other biofuels.

Origin and Etymology of microbe

International Scientific Vocabulary micr- + Greek bios life — more at quick


MICROBE Defined for English Language Learners

microbe

play
noun

Definition of microbe for English Language Learners

  • : an extremely small living thing that can only be seen with a microscope


MICROBE Defined for Kids

microbe

play
noun mi·crobe \ˈmī-ˌkrōb\

Definition of microbe for Students

  1. :  a very tiny and often harmful living thing :  microorganism


Medical Dictionary

microbe

play
noun mi·crobe \ˈmī-ˌkrōb\

Medical Definition of microbe

  1. :  microorganism, germ—used especially of pathogenic bacteria



Seen and Heard

What made you want to look up microbe? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

to become worse as time passes

Get Word of the Day daily email!

Test Your Vocabulary

The Emoji Quiz

  • emoji-the-quiz
  • What phase of the moon is this: 🌖 ?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!