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Mechanically occluding an organ or vessel.


Clinical Linguistic and Auditory Milestone Scale.


(klang) [L. clangere, to peal] In schizophrenia, a style of speech in which words rhyme.

clang association

SEE: under association.


(klăp) A colloquial term for gonorrhea.

clapotage, clapotement

(kla-po-tazh′, kla-pot-mon′) [Fr.] Any splashing sound in succussion of a dilated stomach.


(klap′ing) 1. A technique for clearing the airway in which the therapist rhythmically strikes with his or her cupped hands the chest wall to help loosen thick secretions in the lungs. 2. A similar, rhythmic striking of any body part, used in massage therapy.

Clapton lines

(klap′tŏn) Green lines on the dental margin of the gums in copper poisoning.

Clara cell

(klar′ă, klah′ră) [Max Clara, Austrian anatomist, 1899–1937] One of the secreting cells in the surface epithelium of the bronchioles. The cells have no cilia and secrete surfactant, like the type II alveolar epithelial cells found deeper in the bronchial tree.


Contact lens–induced red eye.


(klar″ĭ-fĭ-kā′shŏn) 1. The removal of turbidity from a solution. 2. In psychiatry, a technique to help a patient recognize inconsistencies in his or her statements.


SEE: loratadine.

Clarke, Jacob A. L.

(klark) British anatomist, 1817–1880.

C. column The posterior thoracic nucleus of the spinal cord. It contains secondary afferents involved with proprioception. Located between T1-L3 spinal cord segments. SYN: dorsal nucleus of the spinal cord; nucleus dorsalis; posterior thoracic nucleus.

Clarke-Hadfield syndrome

(klahrk′hăd′fēld) [Cecil Clarke, 20th-cent. Brit. physician; Geoffrey John Hadfield, Brit. pathologist, 1899–1968] An infrequently used eponym for cystic fibrosis. SEE: cystic fibrosis.

Clark electrode

(klahrk) Oxygen electrode.

Clark rule

(klark) A method of calculating pediatric drug dosages. The weight of the child in pounds is multiplied by the adult dose and the result is divided by 150. SEE: dosage.

-clasis, -clast

[Gr. klan, to break] Suffixes meaning break, breaking, breaker.


(klăz-măt″ō-dĕn-drō′sĭs) [Gr. klasma, fragment, + dendron, tree, + osis, condition] Breaking up of astrocytic protoplasmic expansions.


(klasp) In dentistry, a type of wire or metal retainer or attachment used to ...

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