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collective bargaining

A negotiation between an employer and employee representatives, e.g., between a health care facility and one of its employee unions.

Collembola

(ko-lem′bŏ-lă) [Gr. kolla, glue + Gr. embolos, embolon a ram, wedge] A subclass of animals that superficially resemble insects, found within the subphylum Hexapoda. Members of Collembola are frequently found in leaf litter and other decaying matter, where they are one of the main biological agents for the control and the dissemination of soil microorganisms. Occasionally they may infest humans, e.g. on the scalp. SYN: springtail.

Colles, Abraham

Irish surgeon, 1773–1843.

C.’s fascia The inner membranous layer of the superficial fascia of the perineum.

C.’s fracture A transverse fracture of the distal radial metaphysis with displacement of the hand posteriorly and outward, causing the characteristic “dinner fork” deformity during radiographical evaluation. Contaminant trauma to the ulnar styloid process and the triangular fibrocartilage complex may also occur.

PATIENT CARE: A history of the injury is obtained, and the patient is assessed for pain, swelling, mobility, and any deformity of the distal forearm. The areas above and below the fracture site are inspected for color changes and palpated for pulses, temperature, and the presence of sensation. The extremity is temporarily immobilized with a splint, and cold is applied according to protocol to reduce pain and limit swelling. The patient is scheduled for radiography, all procedures are explained, and noninvasive pain relief measures are instituted to reduce discomfort. The nurse or orthopedic technician assists with closed reduction and casting if carried out in the emergency department or refers the patient to an orthopedic surgeon for treatment and follow-up care.

colliculectomy

(kŏl-lĭk″ū-lĕk′tō-mē) [L. colliculus, mound, + Gr. ektome, excision] Removal of the colliculus seminalis.

colliculus

(kŏ-lik′yŭ-lŭs, kŏ-lik′yŭ-lī″) pl. colliculi [L. colliculus, a small hill, hillock] A little eminence.

c. seminalis An oval enlargement on the crista urethralis, an elevation in the floor of the prostatic portion of the urethra. On its sides are the openings of the ejaculatory ducts and numerous ducts of the prostate gland. SYN: c. urethralis.

c. urethralis Colliculus seminalis.

collimation

(kŏl″ĭ-mā′shŭn) [L. collineare, to align] 1. The process of making parallel. 2. In radiography, the process of limiting the scatter and extent of the x-ray beam to the part being radiographed.

collimator

(kol′ĭ-māt″ŏr) [L. variant of collineare, to align, direct, aim] A radiographic device used to limit the scatter and extent of the x-ray beam.

automatic collimator Positive beam limiting device.

colliquation

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