How to Say “Bacteria” in Spanish

bacteria
/baɡteɾja/from spelling rules
The English phrase "bacteria" is translated into Spanish as bacteria.
The term bacteria refers to single-celled microorganisms that can be found everywhere and some of which cause diseases. It is a feminine noun.

Which one should you use?

While bacteria is used in Spanish, you may also see the form bacterias. In Spanish, bacteria can be used as a singular noun, whereas bacterias is a very common plural form used when referring to multiple types or groups of bacteria.

How does it change in a sentence?

Unlike in English, where "bacteria" is plural and "bacterium" is singular, the Spanish word bacteria is used for both the singular and the plural forms. To refer specifically to a single bacterium, use una bacteria.

How do you pronounce it?

/baɡteɾja/

What mistakes should you avoid?

English speakers often try to use a Latin-style singular form, but in Spanish you should use una bacteria to refer to a single bacterium.

Did you know?

  • In casual Spanish conversation, people often use the word bicho meaning 'bug' or 'critter' to refer to bacteria and other germs.
  • The word bacteria shares a linguistic root with the Spanish word bastón meaning 'cane' or 'staff'.
  • While bacteria is the scientific term, Spanish speakers frequently use microbios to describe the same organisms in a domestic or hygiene context.

Examples in context

  • Las bacterias son microorganismos.
    Bacteria are microscopic organisms.
    This sentence demonstrates the use of bacteria as a plural noun.
    Tatoeba #5056400 by don_ramon, translation #681666 by Source_VOA
  • Esa enfermedad es causada por una bacteria.
    That disease is caused by bacteria.
    This sentence shows how to use bacteria to refer to a single bacterium.
    Tatoeba #1238643 by hayastan, translation #680328 by Source_VOA
  • Las bacterias generalmente forman colonias.
    Bacteria usually form colonies.
    This sentence illustrates the use of bacteria in a plural context.
    Tatoeba #1611154 by hayastan, translation #1690444 by marcelostockle
  • La bacteria es un componente esencial de la flora intestinal.
    Bacteria is an essential component of the intestinal flora.
  • 17 more sentences on Tatoeba

Example conversation

Lucía and Mateo are talking about hand hygiene in the kitchen.

  1. Lucía

    Lávate las manos para eliminar las bacteria.
    Wash your hands to eliminate the bacteria.
  2. Mateo

    Tienes razón, no quiero enfermarme.
    You are right, I don't want to get sick.
  3. Lucía

    El jabón mata la mayoría de las bacteria.
    Soap kills most of the bacteria.
  4. Mateo

    Gracias por recordármelo, Lucía.
    Thanks for reminding me, Lucía.

Sources

  • IPA marked “from spelling rules” is derived from standard Spanish spelling, where Wiktionary gives none.
  • Example sentences: Tatoeba CC BY 2.0 FR.
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Summer Annabelle
Summer AnnabelleHelp make this guide better. Spot a mistake, know another way to say it, or have an example from real life? Share it below.
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