---
title: histamine — school dictionary · trees and pragmatics
description: «histamine» in the school dictionary: 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. Every meaning for a pupil with its dependency tree and pragmatics.
---

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# histamine

<!-- .vintro -->
**Who acts:** body, Histamine, eyes, you, antihistamine tablet, my · **What happens:** make, cause, react, itch, have, stop · **To what, where:** chemical, allergy symptoms, hay fever, sneezing, histamine, allergen

<!-- .vabout -->
«histamine» in the school dictionary: its meaning for a pupil and its 5 examples, every sentence parsed by Mova itself — its syntax tree, a dependency tree in the style of Universal Dependencies, and its pragmatics clause by clause. The word in the dictionary, with its sense in the lessons: [histamine in the school dictionary](https://md.mova.elamur.ai/free/en/dictionaries/school/w/histamine.md).

## Meaning 1 {#m1}

<!-- .note -->
Usage: science — kept apart, not parsed.

<!-- .ven lang=en -->
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.

<!-- fold The tree, 31 words -->
```conllu
# sent_id = dict:school:histamine:m1:1
# text = 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.
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	chemical	chemical	NOUN	NN	Number=Sing	0	root	_	_
3	made	make	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	2	acl	_	_
4	by	by	ADP	IN	_	6	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	body	body	NOUN	NN	Number=Sing	3	obl	_	_
7	that	that	PRON	WDT	PronType=Rel	8	nsubj	_	_
8	causes	cause	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	acl:relcl	_	_
9	allergy	allergy	NOUN	NN	Number=Sing	10	compound	_	_
10	symptoms	symptom	NOUN	NNS	Number=Plur	8	obj	_	_
11	such	such	ADJ	JJ	Degree=Pos|ExtPos=ADP	13	case	_	_
12	as	as	ADP	IN	_	11	fixed	_	_
13	sneezing	sneezing	NOUN	NN	Number=Sing	10	nmod	_	SpaceAfter=No
14	,	,	PUNCT	,	_	15	punct	_	_
15	itching	itching	NOUN	NN	Number=Sing	13	conj	_	SpaceAfter=No
16	,	,	PUNCT	,	_	17	punct	_	_
17	swelling	swelling	NOUN	NN	Number=Sing	13	conj	_	_
18	and	and	CCONJ	CC	_	21	cc	_	_
19	a	a	DET	DT	Definite=Ind|PronType=Art	21	det	_	_
20	runny	runny	ADJ	JJ	Degree=Pos	21	amod	_	_
21	nose	nose	NOUN	NN	Number=Sing	13	conj	_	_
22	when	when	SCONJ	WRB	_	25	mark	_	_
23	the	the	DET	DT	Definite=Def|PronType=Art	24	det	_	_
24	body	body	NOUN	NN	Number=Sing	25	nsubj	_	_
25	reacts	react	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	8	advcl	_	_
26	to	to	ADP	IN	_	27	case	_	_
27	things	thing	NOUN	NNS	Number=Plur	25	obl	_	_
28	like	like	ADP	IN	_	29	case	_	_
29	pollen	pollen	NOUN	NN	Number=Sing	27	nmod	_	SpaceAfter=No
30	,	,	PUNCT	,	_	31	punct	_	_
31	dust	dust	NOUN	NN	Number=Sing	29	conj	_	_
32	or	or	CCONJ	CC	_	34	cc	_	_
33	insect	insect	NOUN	NN	Number=Sing	34	compound	_	_
34	bites	bite	NOUN	NNS	Number=Plur	29	conj	_	SpaceAfter=No
35	.	.	PUNCT	.	_	2	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | participle |  | a chemical *not said here* |  |  |  | by the body | vn build-26.1-1 «NP.asset V NP»: agent=Asset |
| 2 | **cause** | present | the body | allergy symptoms |  |  |  | such sneezing and itching and swelling and a runny nose | vn engender-27.1-1 «NP V NP»: agent=Precondition symptom=Patient |
| 3 | **react** | present | the body |  |  |  |  | to things like pollen and dust or insect bites | vn respond-113 «NP V PP.theme»: agent=Agent to thing=Theme |

<!-- .note -->
One row per clause the reader finds. «not said here»: a role filled from the clause above. «roles by»: a VerbNet class and frame when one fits the verb, else the reader's rules on the tree.

## Example 1 {#x1}

<!-- .ven lang=en -->
Histamine makes your eyes itch when you have hay fever.

```conllu
# sent_id = dict:school:histamine:x1:1
# text = Histamine makes your eyes itch when you have hay fever.
1	Histamine	histamine	NOUN	NN	Number=Sing	2	nsubj	_	_
2	makes	make	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	your	your	PRON	PRP$	Case=Gen|Person=2|Poss=Yes|PronType=Prs	4	nmod:poss	_	_
4	eyes	eye	NOUN	NNS	Number=Plur	5	nsubj	_	_
5	itch	itch	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	2	xcomp	_	_
6	when	when	ADV	WRB	PronType=Int	8	advmod	_	_
7	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	8	nsubj	_	_
8	have	have	VERB	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	5	advcl	_	_
9	hay	hay	NOUN	NN	Number=Sing	10	compound	_	_
10	fever	fever	NOUN	NN	Number=Sing	8	obj	_	SpaceAfter=No
11	.	.	PUNCT	.	_	2	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | present | Histamine |  |  |  |  |  | tree rules |
| 2 | **itch** | present | your eyes |  |  |  |  |  | vn pain-40.8.1 «NP V»: agent=Patient |
| 3 | **have** | present | you | hay fever |  |  |  |  | vn birth-28.2-1 «NP V NP»: agent=Agent fever=Patient |

## Example 2 {#x2}

<!-- .ven lang=en -->
An antihistamine tablet stopped my sneezing.

```conllu
# sent_id = dict:school:histamine:x2:1
# text = An antihistamine tablet stopped my sneezing.
1	An	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	antihistamine	antihistamine	NOUN	NN	Number=Sing	3	compound	_	_
3	tablet	tablet	NOUN	NN	Number=Sing	4	nsubj	_	_
4	stopped	stop	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
5	my	my	PRON	PRP$	Case=Gen|Number=Sing|Person=1|Poss=Yes|PronType=Prs	6	nmod:poss	_	_
6	sneezing	sneezing	NOUN	NN	Number=Sing	4	obj	_	SpaceAfter=No
7	.	.	PUNCT	.	_	4	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **stop** | past | a antihistamine tablet | my sneezing |  |  |  |  | vn stop-55.4-1-1 «NP V NP.eventuality»: agent=Subeventuality sneezing=Eventuality |
| 2 | **sneeze** |  | my |  |  |  |  |  | nom sneezing «state intransitive»: poss=agent |

## Example 3 {#x3}

<!-- .ven lang=en -->
A mosquito bite swells because of histamine.

```conllu
# sent_id = dict:school:histamine:x3:1
# text = A mosquito bite swells because of histamine.
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	mosquito	mosquito	NOUN	NN	Number=Sing	3	compound	_	_
3	bite	bite	NOUN	NN	Number=Sing	4	nsubj	_	_
4	swells	swell	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	because	because	ADP	IN	ExtPos=ADP	7	case	_	_
6	of	of	ADP	IN	_	5	fixed	_	_
7	histamine	histamine	NOUN	NN	Number=Sing	4	obl	_	SpaceAfter=No
8	.	.	PUNCT	.	_	4	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **swell** | present | a mosquito bite |  |  |  |  | because histamine | vn calibratable\_cos-45.6.1-1 «NP.attribute V»: agent=Attribute |

## Example 4 {#x4}

<!-- .ven lang=en -->
The body releases histamine when it meets an allergen.

```conllu
# sent_id = dict:school:histamine:x4:1
# text = The body releases histamine when it meets an allergen.
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	body	body	NOUN	NN	Number=Sing	3	nsubj	_	_
3	releases	release	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	histamine	histamine	NOUN	NN	Number=Sing	3	obj	_	_
5	when	when	SCONJ	WRB	_	7	mark	_	_
6	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	7	nsubj	_	_
7	meets	meet	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	advcl	_	_
8	an	a	DET	DT	Definite=Ind|PronType=Art	9	det	_	_
9	allergen	allergen	NOUN	NN	Number=Sing	7	obj	_	SpaceAfter=No
10	.	.	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **release** | present | the body | histamine |  |  |  |  | vn free-10.6.3-1 «NP V NP S\_ING»: agent=Causer histamine=Source |
| 2 | **meet** | present | body | a allergen |  |  |  |  | vn meet-36.3-1 «NP V NP»: agent=Agent allergen=Co-Agent |

## Example 5 {#x5}

<!-- .ven lang=en -->
Nettle stings contain some histamine.

```conllu
# sent_id = dict:school:histamine:x5:1
# text = Nettle stings contain some histamine.
1	Nettle	nettle	NOUN	NN	Number=Sing	2	compound	_	_
2	stings	sting	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	contain	contain	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	some	some	DET	DT	PronType=Ind	5	det	_	_
5	histamine	histamine	NOUN	NN	Number=Sing	3	obj	_	SpaceAfter=No
6	.	.	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **contain** | present | Nettle stings | some histamine |  |  |  |  | vn comprise-107.2-2 «NP V NP»: agent=Pivot histamine=Theme |

<!-- div src -->

**Text:** the school dictionary of Mova's schools (`world/data/dictionary-schools/`), written for Mova. **Trees:** Mova's own parse — the `en` model on the CPU, when the site is built — not checked by a teacher; they may be wrong. **Frames:** Mova's frames reader (`prag`), each meaning and example read on its own. Elamur Cosmic License.

<!-- /div -->

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