How to Say "bacteria" in Spanish
The Spanish word for “bacteria” is “bacteria” — A2 level. This is a very common word in everyday Spanish.

Examples
Lávate las manos para eliminar las bacterias.
Wash your hands to eliminate the bacteria.
El yogur contiene bacterias beneficiosas para el cuerpo.
Yogurt contains bacteria that are beneficial for the body.
La infección fue causada por una bacteria muy resistente.
The infection was caused by a very resistant bacteria.
Always Feminine
Even though it refers to a tiny organism, 'bacteria' is always a feminine word. Use 'la' for one and 'las' for many.
Singular vs. Plural
In English, people often use 'bacteria' for both one and many. In Spanish, you must use 'bacteria' for just one and 'bacterias' for two or more.
Gender Error
Mistake: “El bacteria es peligrosa.”
Correction: La bacteria es peligrosa. 'Bacteria' is a feminine noun, so it always needs 'la'.
Related Translations
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