noun · 2 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
Received-Pronunciation:/ˈmaɪkɹəʊb/
General-American:/ˈmaɪkɹoʊb/
California:Recorded audio is listed in the source snapshot.
Canada:/ˈmaɪkɹoʊb/
Canada:[ˈmʌɪkɹoʊb]
Australian:/ˈmɑɪkɹəʉb/
Australian:/ˈmɑɪkɹɐʉb/
New-Zealand:/ˈmaɪkɹɐʉb/
CMU ARPABET:M AY1 K R OW2 B
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
Any microorganism; (loosely, nonscientifically) especially, a harmful bacterium.
Definition source: English Wiktionary via Wiktextract
Topics: biology, microbiology, natural-sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
a minute life form (especially a disease-causing bacterium); the term is not in technical use
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: bug, germ
Antonyms: none provided
Broader terms: microorganism, micro-organism
History
Etymology
Borrowed from French microbe, from Ancient Greek μικρός (mikrós, “small”) and βίος (bíos, “life”). By surface analysis, micro- + -obe.
Across languages
Translations
91 source translations are retained for this English entry.
Afrikaans:
mikrobe
— microorganism
Albanian:
mikrob
— microorganism
Arabic:
مِيكْرُوب
(mīkrūb)
— microorganism
Arabic:
جُرْثُوم
(jurṯūm)
— microorganism
Armenian:
մանրէ
(manrē)
— microorganism
Armenian:
միկրոբ
(mikrob)
— microorganism
Assamese:
অণুজীৱ
(onuziw)
— microorganism
Assamese:
জীৱাণু
(ziwanu)
— microorganism
Asturian:
microbiu
— microorganism
Azerbaijani:
mikrob
— microorganism
Belarusian:
мікро́б
(mikrób)
— microorganism
Bengali:
জীবাণু
(jibanu)
— microorganism
Bulgarian:
микро́б
(mikrób)
— microorganism
Burmese:
ပိုး
(pui:)
— microorganism
Catalan:
microbi
— microorganism
Chinese Mandarin:
微生物
(wēishēngwù)
— microorganism