[Elamur Dictionary](https://md.dictionary.elamur.ai/free/en/) · [this page in HTML](https://dictionary.elamur.ai/free/en/english/infectious/)

[dictionaries](https://md.dictionary.elamur.ai/free/en/) / [English](https://md.dictionary.elamur.ai/free/en/english/) / [I](https://md.dictionary.elamur.ai/free/en/english/i/) / infectious

# infectious

adjective (infectious, more infectious, most infectious)

«infectious» in the English dictionary: everyday — its meanings, how the lessons use it, and examples, each with its tree on Mova.

## Everyday

1. An infectious disease can be passed from one person or animal to another, through germs in the air, water, food or touch. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/I/infectious/#m1)
2. An infectious person has an illness that others can catch. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/I/infectious/#m2)
3. Infectious can describe a feeling or laugh that spreads quickly to other people. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/I/infectious/#m3)

### In the lessons

In health and science lessons, colds, flu, chickenpox and stomach bugs are infectious; handwashing, covering coughs and staying home when ill stop them spreading. Not all diseases are infectious: diabetes and allergies are not. In stories and everyday life, an infectious laugh or smile makes others laugh too. Phrases: infectious disease, highly infectious, an infectious laugh.

### Examples

- Chickenpox is very infectious, so Lily stayed home. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/I/infectious/#x1)
- Wash your hands to stop infectious diseases spreading. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/I/infectious/#x2)
- He is still infectious, so he can't come to the party. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/I/infectious/#x3)
- Her laugh was so infectious that the whole class giggled. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/I/infectious/#x4)
- Allergies are not infectious; you can't catch them. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/I/infectious/#x5)
- The vet checked the dog for infectious illnesses. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/I/infectious/#x6)
- The little boy laughed, and Uncle Remus supplemented this indorsement of his descriptive powers with a most infectious chuckle. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/I/infectious/#x7)

### Note

Noun: infection. «Infectious» and «contagious» are close; contagious often means spread by touch. A cut can be «infected» (germs got into it); that is not the same as «infectious».

## On Mova

- [Trees and pragmatics of «infectious» in the school dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/school/I/infectious/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«infectious» in the school dictionary](https://mova.elamur.ai/free/en/dictionaries/school/w/infectious.html) on Mova free.