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(kor′dăl) Pert. to a cord, e.g., a spinal or vocal cord.


(kor′dāt) [L. cor, heart] Shaped like a heart.


(kor-dĕk′tō-mē) [Gr. khorde, cord, + ektome, excision] Surgical removal of a cord.


(kor-dī′tĭs) Funiculitis.


(kor″dō-sen″tē′sĭs) [cord (2) + centesis] Withdrawal of a sample of fetal blood from the umbilical cord with a needle inserted through the abdominal and uterine walls into the amniotic sac. It is done under ultrasonic guidance after 17 weeks of pregnancy to diagnose fetal abnormalities or infections when amniocentesis, chorionic villus sampling, or fetal ultrasound have proven inconclusive.

image Risks of the procedure include pain, bleeding, infection, premature rupture of membranes, and miscarriage.

 SYN: percutaneous cord blood sampling.


(kor′dō-pĕk″sē) [″ + pexis, fixation] Surgical fixation of anatomical cords, esp. the vocal cords.

cordotomy, chordotomy

(kor-dŏt′ō-mē) [Fr. corde fr. L. chorda, intestine, rope fr. Gr. chordē, string, gut + -tomy] Spinal cord section of lateral pathways to relieve intractable pain.


(kor) 1. The center of a structure. 2. A cylindrical tissue specimen. 3. Core muscle.

infarct c. Tissue so thoroughly deprived of blood flow (as in a stroke or myocardial infarction) that it will not survive despite reperfusion. SEE: ischemic penumbra.

ischemic c. The infarct core plus the tissue immediately surrounding the core that may also be damaged if blood flow is not restored quickly.


(kō″rē-sep′tŏr) [com- + receptor] A structure on a cell membrane that enhances the action of the cell receptor.

CCR5 c. A cell surface receptor found on macrophages that facilitates entry of HIV-1 into these cells. Chemokines released by T cells attempt to compete with HIV by blocking the receptor to prevent infection.

CXCR4 c. A cell surface receptor found on T cells that facilitates entry of HIV-1 into these cells. SYN: fusin.


(kor″ē-klī′sĭs) [Gr. kore, pupil of the eye, + kleisis, closure] Occlusion of the pupil.

core competency

The basic knowledge and the fundamental set of attitudes and skills that are needed to perform in one’s role as a health care professional. SYN: competency validation program.

corectasia, corectasis

(kor-ĕk-tā′zē-ă, -ĕk′tă-sĭs) [″ + ektasis, dilatation] Dilatation of the pupil of the eye resulting from disease.



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