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(ŭl′sĕ-rāt″) [L. ulcerare, to form ulcers] To produce or become affected with an ulcer. ulcerated (ŭl′sĕ-rāt″ĕd), adj.
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(ŭl″sĕ-rā′shŏn) A suppurative or nonhealing lesion on a surface such as skin, cornea, or mucous membrane.
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(ŭl′sĕ-rāt″iv, ŭl′sĕ-răt-iv) Pert. to or causing ulceration.
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(ŭl″sĕ-rō-gang′grĕ-nŭs) Pert. to an ulcer that contains gangrenous tissue.
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(ŭl″sĕ-rō-mem′bră-nŭs) Pert. to ulceration and formation of a fibrous pseudomembrane.
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(ŭl′sĕ-rŭs) Pert. to or affected with an ulcer.
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(ŭl′kŭs, ŭl′sĕr-ă) pl. ulcera [L. ulcus, stem ulcer-, sore, ulcer] Ulcer.
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(ū-līt′ĭs) [Gr. oulon, gum (of the mouth), gingiva + -itis] Gingivitis.
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unprotected left main disease.
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(ŭl′mŭs) [L. ulmus, elm, elm tree] A genus of approx. 30 species of deciduous trees widespread over the northern hemisphere.
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U. rubra SEE: slippery elm.
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(ŭl′nă, ŭl′nē) pl. ulnae [L. ulna, elbow] The larger, more medial bone of the forearm. It articulates with the head of the radius and humerus proximally, and with the radius and carpals distally.
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(ŭl′năd) [ulnad + -ad] In the direction of the ulna.
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(ŭl′năr) [ulnaris] Pert. to the ulna, or to the nerve or artery named from it.
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(ŭl-nā′rĭs) [L. ulnaris. pert. to the elbow] 1. Ulnar. 2. Pert. to the ulna.
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(ŭl′tĭ-măt) [L. ultimus, ultimatus, farthest, last, final] Final; last.
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(ŭl″tĭ-mō-brang′kē-ăl) [L. ultimus, farthest, last, final + branchial] SEE: under body.
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[L. ultra, on the far side (of), beyond] Prefix meaning beyond, extremely, excessively.
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(ŭl″tră-brak″i-sĕ-fal′ik) [ultra- + brachycephalic] Having a cephalic index of 90 or more.
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(ŭl″tră-sen″trĭ-fyŭ-gā′shŏn) [ultra- + centrifugation] Treatment or preparation of substances by use of the ultracentrifuge.
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analytical u. Ultracentrifugation to determine molecular mass, structure, and size.
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preparative u. Ultracentrifugation to purify mixed solutions of proteins. It separates them based on their densities or their sedimentation coeffieients.