microbes

Invisible life forms

Microbes are microscopic organisms—bacteria, viruses, fungi, and other life forms too small to see without magnification.

The term is informal shorthand for microorganisms, common in discussions of health, disease, and biology: Your gut contains trillions of microbes, antimicrobial soap kills harmful microbes.

Not all microbes cause illness; many are essential to digestion, soil health, and other processes.

taxonomy

bacteria

Nucleus-free single-celled organisms

  • archaeaThird domain of life
  • protozoaSingle-celled eukaryotic organisms
  • fungiSpore-reproducing decomposers

algae · prokaryotes · eukaryotes · microbiota · strains · cultures · species · genus · phylum · domain

pathogens

infection

Pathogen invasion causing illness

  • diseaseDisorder impairing normal function
  • germsMicroscopic disease agents
  • virusMicroscopic infectious agent

bacteria · contagion · epidemic · pandemic · outbreak · plague · fever · inflammation · illness · sickness

beneficial

probiotics

Live microorganisms aiding digestion

yogurt · kombucha · kefir · kimchi · sauerkraut · bioremediation · decomposers · composting · biodegradation · biofertilizers

ecology

ecosystem

Interconnected organisms and surroundings

biogeochemical · habitat · detritus · sediment · aquatic · terrestrial · extremophiles · wetlands · phytoplankton · cyanobacteria

microscopic

invisible

Cannot be seen

  • microscopeInstrument for viewing minute objects
  • colonyDependent territorial settlement
  • slideSmooth continuous movement

staining · agar · magnification · cellular · single-celled · nanoscale · submicroscopic · minuscule · infinitesimal · specimen

Categories
Opposites
size/visibility

microbesmacroorganisms

Life visible unaided

megafauna · whales · elephants · blue whale · giants

organismal complexity

microbesmammals

Hair-bearing, milk-producing animals

vertebrates · animals · plants · humans · eukaryotes

health impact

microbeshost

One receiving guests

immune system · antibiotics · sterile environment · antiseptics · disinfectants

Phrases
Family

microbe, microbial, microbially

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G