retract
verb · nounB1Định nghĩa theo từ loại
Động từ
verb- 1.
(transitive)To pull (something) back or back inside.
An airplane retracts its wheels for flight.
Đồng nghĩa: pull back
- 2.
(rare, transitive)To avert (one's eyes or a gaze).
- 3.
(transitive)To pronounce (a sound, especially a vowel) farther to the back of the vocal tract.
- 4.
(obsolete, transitive)To hold back (something); to restrain.
- 5.
(intransitive)To draw back; to draw up; to withdraw.
The bus was stuck at the stop as its wheelchair ramp wouldn’t retract after use.
Muscles retract after amputation.
- 6.
(obsolete, transitive)To cancel or take back (something, such as an edict or a favour or grant previously bestowed); to rescind, to revoke.
- 7.
(obsolete, transitive)To break or fail to keep (a promise, etc.); to renege.
- 8.
(obsolete, transitive)To take back or withdraw (something that has been said or written); to disavow, to repudiate.
I retract all the accusations I made about the senator and sincerely hope he won’t sue me.
Đồng nghĩa: unsay, unspeak, walk back, withcall, withdraw, abjure, backpedal, disavow, disown, eat one's words, recall, recant, retract, revoke, swallow, take back, unsay, unspeak, walk back, withcall, withdraw
- 9.
(obsolete, transitive)Originally in chess and now in other games as well: to take back or undo (a move); specifically (card games) to take back or withdraw (a card which has been played).
- 10.
(intransitive, obsolete)To decline or fail to do something promised; to break one's word.
- 11.
(intransitive, obsolete)Of something said or written (such as published academic work): to take back or withdraw.
- 12.
(archaic, intransitive, obsolete)To change one's mind after declaring an intention to make a certain move.
Danh từ
noun- 1.
(obsolete)An act of retracting or withdrawing (a mistake, a statement, etc.); a retraction.
- 2.
(obsolete)A pulling back, especially (military) of an army or military troops; a pull-back, a retreat; also, a signal for this to be done.
- 3.
(obsolete)(group theory) 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 σ from G to H with σ|_H= operatorname id.
- 4.
(obsolete)(topology) The target of a retraction.
- 5.
(obsolete)Synonym of retreat (“an act of accidentally injuring a horse's foot by incorrectly nailing it during shoeing”).
Đồng nghĩa: retreat
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Nguồn gốc từ
ine-pro From Late Middle English retracten, retract (to absorb, draw in), from Latin retractus (withdrawn), the perfect passive participle of Latin retrahō, from re- + trahō (to drag, pull; to extract, withdraw). retreat.