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squalene

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(skwăl′ēn) An unsaturated carbohydrate present in shark-liver oil and some vegetable oils. It is an intermediate in the biosynthesis of cholesterol.

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squam-, squamo-

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[L. squama, scale (of a fish)] Prefixes meaning scale, squama.

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squama

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(skwā′ mă) pl. squamae [L.] 1. A thin plate of bone. 2. A scale from the epidermis. SYN: squame.

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squamate

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(skwā′māt) [L. squama, scale] Scaly.

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squame

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(skwām) [L. squama, scale] Squama (2).

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squamocellular

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(skwā″mō-sĕl′ū-lăr) [L. squama, scale, + cellula, little cell] Pert. to or having squamous cells.

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squamocolumnar

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(skwā″mō-kŏ-lŭm′năr) [″ + ″] Pert. to any tissue in which squamous epithelium abuts columnar epithelium.

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squamosa

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(skwā-mō′să) pl. squamosae [L. scaly] 1. The squamous part of the temporal bone. 2. Scaly or platelike.

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squamosal

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(skwā-mō″săl) [L. squama, scale] Squamous.

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squamous

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(skwā′mŭs) [L. squamosus] Scalelike.

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square knot

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SEE: under knot.

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squash prep, squash preparation

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The smearing or compressing of a thin tissue specimen between two slides before microscopic analysis. The specimen is placed flat on the first slide. The second slide is held at a right angle to the first and then dragged along the specimen, distributing it lengthwise along the first slide. The specimen is then fixed with alcohol and stained.

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squatting position

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A position in which the person crouches with legs drawn up closely in front of, or beneath, the body; sitting on one's haunches and heels.

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squawk

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An abnormal breath sound, a short wheeze or squeak, typically heard during inspiration in patients with interstitial lung disease or pneumonia.

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squaw root

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Blue cohosh.

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squeeze-bottle

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A bottle made of a flexible, semirigid material that can be deformed by applying hand pressure to it. It is used to contain irrigating solutions, esp. those required in ophthalmology.

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squeeze test

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(skwēz) An assessment of anterior foot pain with an examining hand applied around the forefoot. When applied pressure elicits tenderness, Morton neuroma is often present.

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SQUID

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superconductive quantum interference device.

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squill

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(skwĭl) [Gr. skilla, a sea onion] An ancient remedy now rarely employed in medical practice, with therapeutic and toxic effects that mimic those of digoxin. It is derived from plants of the lily family.

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squint

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(skwĭnt) [ME. asquint, sidelong glance] 1. Abnormality in which ...

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