A1 noun Neutral #4,623 más común

bacteria

/bækˈtɪəriə/

Bacteria are very small living things that exist almost everywhere. While some can cause diseases and make people sick, many types are helpful for our health and the environment.

Ejemplos

3 de 5
1

You should wash your hands with soap to kill the bacteria.

You should wash your hands with soap to kill the bacteria.

2

The researchers identified several types of bacteria in the water supply.

The researchers identified several types of bacteria in the water supply.

3

Gross, I bet there are so many bacteria on that old sponge!

Gross, I bet there are so many bacteria on that old sponge!

Familia de palabras

Sustantivo
bacteria
Adverbio
bacterially
Adjetivo
bacterial
Relacionado
bacterium
💡

Truco para recordar

Think of the 'bac' in bacteria and a 'back'—if you have bacteria on your back, you need to wash it!

Quiz rápido

The doctor said that the illness was caused by ____.

¡Correcto!

La respuesta correcta es: bacteria

Ejemplos

1

You should wash your hands with soap to kill the bacteria.

everyday

You should wash your hands with soap to kill the bacteria.

2

The researchers identified several types of bacteria in the water supply.

formal

The researchers identified several types of bacteria in the water supply.

3

Gross, I bet there are so many bacteria on that old sponge!

informal

Gross, I bet there are so many bacteria on that old sponge!

4

The study explores how bacteria develop resistance to common antibiotics.

academic

The study explores how bacteria develop resistance to common antibiotics.

5

Our new cleaning product is guaranteed to eliminate 99% of surface bacteria.

business

Our new cleaning product is guaranteed to eliminate 99% of surface bacteria.

Familia de palabras

Sustantivo
bacteria
Adverbio
bacterially
Adjetivo
bacterial
Relacionado
bacterium

Colocaciones comunes

harmful bacteria harmful bacteria
beneficial bacteria beneficial bacteria
kill bacteria kill bacteria
spread bacteria spread bacteria
bacterial infection bacterial infection

Frases Comunes

good bacteria

healthy microorganisms in the body

gut bacteria

microorganisms living in the stomach/intestines

bacterial growth

the increase of bacteria numbers

Se confunde a menudo con

bacteria vs virus

Bacteria are living cells that can live on their own, while viruses need a living host to survive.

bacteria vs bacterium

Bacterium is the singular form (one), while bacteria is the plural form (many).

📝

Notas de uso

In everyday English, 'bacteria' is often used as a collective noun, but in scientific contexts, it is strictly the plural of 'bacterium'.

⚠️

Errores comunes

Many learners say 'a bacteria', but they should say 'a bacterium' or just 'bacteria' when talking about them in general.

💡

Truco para recordar

Think of the 'bac' in bacteria and a 'back'—if you have bacteria on your back, you need to wash it!

📖

Origen de la palabra

From the Greek word 'bakterion', meaning 'small staff' or 'rod', because the first bacteria seen under a microscope were rod-shaped.

Patrones gramaticales

Plural noun (singular: bacterium) Usually takes a plural verb (e.g., 'Bacteria are...')
🌍

Contexto cultural

In modern health culture, people often distinguish between 'bad' bacteria that cause illness and 'good' bacteria found in foods like yogurt.

Quiz rápido

The doctor said that the illness was caused by ____.

¡Correcto!

La respuesta correcta es: bacteria

Más palabras de Health

head

A1

The upper part of the human body that contains the brain, eyes, ears, nose, and mouth. It is supported by the neck and is the center for the senses and thinking.

ear

A1

The ear is the organ on the side of the head that humans and animals use to hear sounds. It also helps the body maintain its sense of balance.

mouth

A1

The opening in the lower part of the human face, surrounded by the lips, through which food is taken in and sounds and speech are emitted. It contains the teeth and the tongue and is the beginning of the digestive tract.

tooth

A1

A tooth is one of the hard, white objects in your mouth used for biting and chewing food. Humans have two sets of teeth during their lives: primary (baby) teeth and permanent (adult) teeth.

shoulder

A1

The shoulder is the part of the human body where the arm connects to the trunk. It consists of a large joint that allows the arm to rotate and move in many directions.

finger

A1

One of the five long, thin parts at the end of the human hand. Fingers are used for feeling, touching, and gripping objects.

stomach

A1

The organ in your body where food goes after you eat it to be broken down. It is also the front part of your body below the chest and above the legs.

leg

A1

A leg is one of the long parts of the body that humans and animals use for standing, walking, and running. It refers to the entire limb starting from the hip down to the ankle.

foot

A1

The foot is the part of the body at the bottom of the leg that a person stands on. It is used for balance, walking, running, and jumping.

toe

A1

A toe is one of the five separate parts at the end of the human foot. They help provide balance and support the weight of the body while standing or walking.

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