RETRACTION

Pronunciation (US):

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IPA (US):

 Dictionary entry overview: What does retraction mean? 

• RETRACTION (noun)
  The noun RETRACTION has 2 senses:

1. a disavowal or taking back of a previous assertion

2. the act of pulling or holding or drawing a part back

  Familiarity information: RETRACTION used as a noun is rare.

 Dictionary entry details 

• RETRACTION (noun)

Sense 1

Meaning:

A disavowal or taking back of a previous assertion

Classified under:

Nouns denoting communicative processes and contents

Synonyms:

abjuration; recantation; retraction

Hypernyms ("retraction" is a kind of...):

disavowal; disclaimer (denial of any connection with or knowledge of)

Hyponyms (each of the following is a kind of "retraction"):

backdown; climb-down; withdrawal (a retraction of a previously held position)

Derivation:

retract (formally reject or disavow a formerly held belief, usually under pressure)

Sense 2

Meaning:

The act of pulling or holding or drawing a part back

Classified under:

Nouns denoting acts or actions

Context example:

retraction of the foreskin

Hypernyms ("retraction" is a kind of...):

motility; motion; move; movement (a change of position that does not entail a change of location)

Derivation:

retract (pull inward or towards a center)

 Context examples 

Mutation of the gene is associated with Duane retraction syndrome 2.

(CHN1 wt Allele, NCI Thesaurus)

ROCK activation leads to MLC phosphorylation, resulting in retraction of the actin cytoskeleton.

(Leukocyte Transendothelial Migration Pathway, NCI Thesaurus/KEGG)

A rare congenital malformation characterized by micrognathia, posterior retraction of the tongue, and cleft palate.

(Pierre Robin Syndrome, NCI Thesaurus)

A type of laparoscopic surgery where the surgeon uses both a laparoscope and his or her hand to help with dissection, retraction, and removal of tissue through a hand port incision.

(Hand Assisted Laparoscopy, NCI Thesaurus)

Clinical signs include limitation of upward gaze, light-near dissociation of the pupillary response, eyelid retraction (Collier's sign) and convergence-retraction nystagmus.

(Parinaud Syndrome, NCI Thesaurus)

He felt himself bound as much in honour as in affection to Miss Morland, and believing that heart to be his own which he had been directed to gain, no unworthy retraction of a tacit consent, no reversing decree of unjustifiable anger, could shake his fidelity, or influence the resolutions it prompted.

(Northanger Abbey, by Jane Austen)

A form of programmed cell death that begins when a cell receives internal or external signals, then proceeds through a series of characteristic stages typically including rounding-up of the cell, retraction of pseudopods, reduction of cellular volume (pyknosis), chromatin condensation, nuclear fragmentation (karyorrhexis), and plasma membrane blebbing, and ends with the death of the cell.

(Apoptosis, NCI Thesaurus)

A condition of the newborn marked by dyspnea with cyanosis, heralded by such prodromal signs as dilatation of the alae nasi, expiratory grunt, and retraction of the suprasternal notch or costal margins, mostly frequently occurring in premature infants, children of diabetic mothers, and infants delivered by cesarean section, and sometimes with no apparent predisposing cause.

(Neonatal Respiratory Distress Syndrome, NLM, Medical Subject Headings)

Moreover, leukocytes activate endothelial cell signals that stimulate endothelial cell retraction during localized dissociation of the endothelial cell junctions.

(Leukocyte Transendothelial Migration Pathway, NCI Thesaurus/KEGG)

A leukocyte adherent to CAMs on the endothelial cells moves forward by leading-edge protrusion and retraction of its tail.

(Leukocyte Transendothelial Migration Pathway, NCI Thesaurus/KEGG)