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# histamine

noun (histamine, uncountable)

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

## Everyday

(science) A chemical made by the body that causes allergy symptoms such as sneezing, itching, swelling and a runny nose when the body reacts to things like pollen, dust or insect bites. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/H/histamine/#m1)

### In the lessons

In health and science lessons on allergies and hay fever: when pollen gets in your nose, the body releases histamine. «Antihistamine» medicines block it and help with hay fever, rashes and itchy bites. Safety: only take medicine given by an adult; serious allergies need an EpiPen and an ambulance.

### Examples

- Histamine makes your eyes itch when you have hay fever. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/H/histamine/#x1)
- An antihistamine tablet stopped my sneezing. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/H/histamine/#x2)
- A mosquito bite swells because of histamine. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/H/histamine/#x3)
- The body releases histamine when it meets an allergen. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/H/histamine/#x4)
- Nettle stings contain some histamine. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/H/histamine/#x5)

### Note

Uncountable. Said «HIS-tuh-meen». «Antihistamine» means a medicine against histamine.

## On Mova

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