---
title: efficacious — school dictionary · trees and pragmatics
description: «efficacious» in the school dictionary: Working well; producing the result you want, especially of a medicine or treatment. Every meaning for a pupil with its dependency tree and pragmatics.
---

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# efficacious

<!-- .vintro -->
**Who acts:** you, new medicine, Rest, scientists, cream, warm bath · **What happens:** work, produce, want, prove, be, test · **To what, where:** result, baby, efficacious way, tables

<!-- .vabout -->
«efficacious» in the school dictionary: its meaning for a pupil and its 6 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: [efficacious in the school dictionary](https://md.mova.elamur.ai/free/en/dictionaries/school/w/efficacious.md).

## Meaning 1 {#m1}

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

<!-- .ven lang=en -->
Working well; producing the result you want, especially of a medicine or treatment.

<!-- fold The tree, 13 words -->
```conllu
# sent_id = dict:school:efficacious:m1:1
# text = Working well; producing the result you want, especially of a medicine or treatment.
1	Working	work	VERB	VBG	Tense=Pres|VerbForm=Part	0	root	_	_
2	well	well	ADV	RB	Degree=Pos	1	advmod	_	SpaceAfter=No
3	;	;	PUNCT	:	_	4	punct	_	_
4	producing	produce	VERB	VBG	Tense=Pres|VerbForm=Part	1	conj	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	result	result	NOUN	NN	Number=Sing	4	obj	_	_
7	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	8	nsubj	_	_
8	want	want	VERB	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	6	acl:relcl	_	SpaceAfter=No
9	,	,	PUNCT	,	_	13	punct	_	_
10	especially	especially	ADV	RB	_	13	advmod	_	_
11	of	of	ADP	IN	_	13	case	_	_
12	a	a	DET	DT	Definite=Ind|PronType=Art	13	det	_	_
13	medicine	medicine	NOUN	NN	Number=Sing	4	obl	_	_
14	or	or	CCONJ	CC	_	15	cc	_	_
15	treatment	treatment	NOUN	NN	Number=Sing	13	conj	_	SpaceAfter=No
16	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **work** | gerund |  |  |  |  |  | well *property* | vn employment-95.3 «NP V»: agent=Agent |
| 2 | **produce** | gerund |  | the result |  |  |  | of a medicine or treatment | vn create-26.4 «NP V NP»: agent=Agent result=Result |
| 3 | **want** | present | you | the result *not said here* |  |  |  |  | vn want-32.1-1-1 «NP V NP ADV»: agent=Pivot result=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 -->
The new medicine proved efficacious against the cough.

```conllu
# sent_id = dict:school:efficacious:x1:1
# text = The new medicine proved efficacious against the cough.
1	The	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
2	new	new	ADJ	JJ	Degree=Pos	3	amod	_	_
3	medicine	medicine	NOUN	NN	Number=Sing	4	nsubj	_	_
4	proved	prove	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
5	efficacious	efficacious	ADJ	JJ	Degree=Pos	4	xcomp	_	_
6	against	against	ADP	IN	_	8	case	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	cough	cough	NOUN	NN	Number=Sing	5	obl	_	SpaceAfter=No
9	.	.	PUNCT	.	_	4	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **prove** | past | the new medicine |  |  |  |  | efficacious *property* | vn declare-29.4-1-1 «NP V what S\_INF»: agent=Agent |

## Example 2 {#x2}

<!-- .ven lang=en -->
Rest and fluids are efficacious for a cold.

```conllu
# sent_id = dict:school:efficacious:x2:1
# text = Rest and fluids are efficacious for a cold.
1	Rest	rest	NOUN	NN	Number=Sing	5	nsubj	_	_
2	and	and	CCONJ	CC	_	3	cc	_	_
3	fluids	fluid	NOUN	NNS	Number=Plur	1	conj	_	_
4	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	5	cop	_	_
5	efficacious	efficacious	ADJ	JJ	Degree=Pos	0	root	_	_
6	for	for	ADP	IN	_	8	case	_	_
7	a	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
8	cold	cold	NOUN	NN	Number=Sing	5	obl	_	SpaceAfter=No
9	.	.	PUNCT	.	_	5	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | Rest and fluids |  |  |  |  | for a cold; efficacious *property* | tree rules |

## Example 3 {#x3}

<!-- .ven lang=en -->
The scientists tested whether the cream was efficacious.

```conllu
# sent_id = dict:school:efficacious:x3:1
# text = The scientists tested whether the cream was efficacious.
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	scientists	scientist	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	tested	test	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
4	whether	whether	SCONJ	IN	_	8	mark	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	cream	cream	NOUN	NN	Number=Sing	8	nsubj	_	_
7	was	be	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	8	cop	_	_
8	efficacious	efficacious	ADJ	JJ	Degree=Pos	3	advcl	_	SpaceAfter=No
9	.	.	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **test** | past | the scientists |  |  |  |  |  | vn assessment-34.1 «NP V NP»: agent=Agent |
| 2 | **is** | past | the cream |  |  |  |  | efficacious *property* | tree rules |

## Example 4 {#x4}

<!-- .ven lang=en -->
A warm bath was efficacious in calming the baby.

```conllu
# sent_id = dict:school:efficacious:x4:1
# text = A warm bath was efficacious in calming the baby.
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	warm	warm	ADJ	JJ	Degree=Pos	3	amod	_	_
3	bath	bath	NOUN	NN	Number=Sing	5	nsubj	_	_
4	was	be	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	5	cop	_	_
5	efficacious	efficacious	ADJ	JJ	Degree=Pos	0	root	_	_
6	in	in	SCONJ	IN	_	7	mark	_	_
7	calming	calm	VERB	VBG	Tense=Pres|VerbForm=Part	5	advcl	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
9	baby	baby	NOUN	NN	Number=Sing	7	obj	_	SpaceAfter=No
10	.	.	PUNCT	.	_	5	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | past | a warm bath |  |  |  |  | efficacious *property* | tree rules |
| 2 | **calm** | gerund | a warm bath *not said here* | the baby |  |  |  |  | vn amuse-31.1 «NP V NP»: agent=Stimulus baby=Experiencer |

## Example 5 {#x5}

<!-- .ven lang=en -->
The spray was efficacious against greenfly.

```conllu
# sent_id = dict:school:efficacious:x5:1
# text = The spray was efficacious against greenfly.
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	spray	spray	NOUN	NN	Number=Sing	4	nsubj	_	_
3	was	be	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	4	cop	_	_
4	efficacious	efficacious	ADJ	JJ	Degree=Pos	0	root	_	_
5	against	against	ADP	IN	_	6	case	_	_
6	greenfly	greenfly	NOUN	NN	Number=Sing	4	obl	_	SpaceAfter=No
7	.	.	PUNCT	.	_	4	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | past | the spray |  |  |  |  | against greenfly; efficacious *property* | tree rules |

## Example 6 {#x6}

<!-- .ven lang=en -->
Practice is the most efficacious way to learn tables.

```conllu
# sent_id = dict:school:efficacious:x6:1
# text = Practice is the most efficacious way to learn tables.
1	Practice	practice	NOUN	NN	Number=Sing	6	nsubj	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	cop	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
4	most	most	ADV	RBS	Degree=Sup	5	advmod	_	_
5	efficacious	efficacious	ADJ	JJ	Degree=Pos	6	amod	_	_
6	way	way	NOUN	NN	Number=Sing	0	root	_	_
7	to	to	PART	TO	_	8	mark	_	_
8	learn	learn	VERB	VB	VerbForm=Inf	6	acl	_	_
9	tables	table	NOUN	NNS	Number=Plur	8	obj	_	SpaceAfter=No
10	.	.	PUNCT	.	_	6	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present | Practice | the efficacious way |  |  |  |  | tree rules |
| 2 | **learn** | to-infinitive |  | tables |  |  |  |  | vn learn-14-2-1 «NP V NP»: agent=Agent table=Topic |

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**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.

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