Retract

English

Pronunciation

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Etymology 1

Template:Root From Late Template:Inh, Template:M, from Template:Der, the Template:Glossary Template:Glossary Template:Glossary of Template:Der, from Template:M + Template:M (apparently ultimately from Template:Der, a variant of Template:M). Template:Doublet.

Verb

1. Template:Lb
   1. To pull (something) back or back inside.

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      1. Template:Lb To draw (an extended body part) back into the body.

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   2. Template:Lb To avert (one's eyes or a gaze).
   3. Template:Lb To pronounce (a sound, especially a vowel) farther to the back of the vocal tract.
   4. Template:Lb To hold back (something); to restrain.
2. Template:Lb To draw back; to draw up; to withdraw.

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Related terms

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Translations

• Bulgarian: Template:T+
• Chinese:

  Mandarin: Template:T+, Template:T+

• Czech: Template:T, Template:T+
• Finnish: Template:T
• Greek: Template:T+
• Hungarian: Template:T+, Template:T+
• Maori: Template:T
• Portuguese: Template:T+
• Romanian: Template:T+, Template:T+
• Russian: Template:T+, Template:T+
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• Chinese:

  Mandarin: Template:T+

• Chinese:

  Mandarin: Template:T

• Bulgarian: Template:T+, Template:T
• Cornish: Template:T
• French: Template:T+
• Hungarian: Template:T+, Template:T+
• Latin: Template:T
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• Woiwurrung: Template:T-check

Etymology 2

Partly:

• from Template:M (see etymology 1); and
• from Template:Der, from Template:Der, the Template:Glossary Template:Glossary Template:Glossary of Template:Der (see etymology 1) + Template:M. Template:Doublet.

Noun

1. An act of retracting or withdrawing (a mistake, a statement, etc.); a retraction.
   • Template:RQ:Plutarch Holland Morals
2. A pulling back, especially Template:Lb of an army or military troops; a pull-back, a retreat; also, a signal for this to be done.
   • Template:RQ:Raleigh Historie of the World
3. Template:Lb A subgroup of a given group such that there is a surjective endomorphism from the ambient group to the subgroup which is constant on the subgroup; in this case the subgroup is a retract of the ambient group. In symbols: $H$ in $G$ is a retract of $G$ if there exists a surjective homomorphism $\sigma$ from $G$ to $H$ with $\sigma {|}_H=\mathrm{id}$.
4. Template:Lb The target of a retraction.
5. Template:Synonym of

Derived terms

• deformation retract

Etymology 3

From Template:Der (modern Template:Cog), and from its Template:Glossary Template:Der, the Template:Glossary Template:Glossary Template:Glossary of Template:M, from Template:M + Template:M (from Template:M (see further at etymology 1) + Template:M).

Verb

1. Template:Lb
   1. To cancel or take back (something, such as an edict or a favour or grant previously bestowed); to rescind, to revoke.
      • Template:RQ:Woodward Fossils
   2. To break or fail to keep (a promise, etc.); to renege.
   3. To take back or withdraw (something that has been said or written); to disavow, to repudiate.

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      • Template:RQ:Stillingfleet Idolatry
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   4. Template:Lb Originally in chess and now in other games as well: to take back or undo (a move); specifically Template:Lb to take back or withdraw (a card which has been played).
2. Template:Lb
   1. To decline or fail to do something promised; to break one's word.
   2. Of something said or written (such as published academic work): to take back or withdraw.
      • Template:RQ:Doyle Lost World
   3. Template:Lb To change one's mind after declaring an intention to make a certain move.

Derived terms

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Related terms

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Translations

• Bulgarian: Template:T
• Czech: Template:T, Template:T+
• Finnish: Template:T
• French: Template:T+
• Greek: Template:T+
• Hungarian: Template:T+
• Italian: Template:T+
• Maori: Template:T
• Portuguese: Template:T+, Template:T+
• Romanian: Template:T+, Template:T+
• Spanish: Template:T+, Template:T+
• Swedish: Template:T

See also

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Further reading

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