| PH | parathyroid hormone; partial hepatectomy; partial hysterectomy; passive hemagglutination; past histo... |
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| PS | pacemaker syndrome; paired stimulation; paradoxical sleep; paraspinal; parasympathetic; Parkinson sy... |
| BI | background interval; bacterial or bactericidal index; base-in [prism]; basilar impression; Billroth ... |
| CGI | chronic granulomatous inflammation; Clinical Global Impression [scale]; common gateway interface [of... |
| HcImp | hydrocolloid impression |
| cardiac impression of lung | The depression on the medial surface of each lung produced by the presence of the heart. It is more pronounced on the left lung. Synonym: impressio cardiaca pulmonis. (05 Mar 2000) |
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| gastric impression | A hollow on the visceral surface of the left lobe of the liver corresponding to the location of the stomach. Synonym: impressio gastrica. (05 Mar 2000) |
| renal impression | A hollow on the visceral surface of the right lobe of the liver, in which lies the right kidney. Synonym: impressio renalis. (05 Mar 2000) |
| mental impression | 1. The act of impressing, or the state of being impressed; the communication of a stamp, mold, style, or character, by external force or by influence. 2. <dentistry> The first step in making a model of your teeth. You bite into a container filled with algenate, and the algenate hardens to produce a mold of your teeth. 3. That which is impressed; stamp; mark; indentation; sensible result of an influence exerted from without. "The stamp and clear impression of good sense." (Cowper) "To shelter us from impressions of weather, we must spin, we must weave, we must build." (Barrow) 4. The pressure of the type on the paper, or the result of such pressure, as regards its appearance; as, a heavy impression; a clear, or a poor, impression; also, a single copy as the result of printing, or the whole edition printed at a given time. "Ten impressions which his books have had." (Dryden) Origin: F. Impression, L. Impressio. (27 Oct 1998) |
| rhomboid impression | <anatomy> An irregular pitted area on the inferior surface of the clavicle at its sternal end, giving attachment to the costoclavicular ligament. Synonym: impressio ligamenti costoclavicularis, costal tuberosity, rhomboid impression, tuberositas costalis. (05 Mar 2000) |
| petrosal impression of the pallium | A shallow impression on the inferior surface of the cerebral hemisphere made by the superior margin of the petrous part of the temporal bone. Synonym: impressio petrosa pallii. (05 Mar 2000) |
| colic impression | <anatomy> A hollow on the visceral surface of the right lobe of the liver anteriorly, corresponding to the situation of the right flexure and beginning of the transverse colon. Synonym: impressio colica. (05 Mar 2000) |
| preliminary impression | Primary impression, in dentistry, one made for the purpose of diagnosis or the construction of a tray. (05 Mar 2000) |
| sectional impression | An impression that is made in sections. (05 Mar 2000) |
| suprarenal impression | A hollow on the visceral surface of the right lobe of the liver, adjoining the groove for inferior venae cava, in which lies the right suprarenal gland. Synonym: impressio suprarenalis. (05 Mar 2000) |
| deltoid impression | A rough elevation about the middle of the lateral side of the shaft of the humerus, giving attachment to the deltoid muscle. Synonym: tuberositas deltoidea, deltoid crest, deltoid eminence, deltoid impression. (05 Mar 2000) |
| dental impression materials | Substances or combinations of substances used for making a negative reproduction or impression of the teeth and oral structures for the purpose of producing restorations, prostheses, and dentures, including elastomeric materials, dental plasters, metallic oxide pastes, hydrocolloids, silicone base materials, polyethers, polysulfides, and duplicating compounds. (12 Dec 1998) |
| dental impression technique | Procedure of producing an imprint or negative likeness of the teeth and/or edentulous areas. Impressions are made in plastic material which becomes hardened or set while in contact with the tissue. They are later filled with plaster of paris or artificial stone to produce a facsimile of the oral structures present. Impressions may be made of a full complement of teeth, of areas where some teeth have been removed, or in a mouth from which all teeth have been extracted. (12 Dec 1998) |
| direct bone impression | An impression of denuded bone, used in the construction of subperiosteal denture implants. (05 Mar 2000) |
| duodenal impression | A hollow on the visceral surface of the right lobe of the liver alongside the gallbladder, marking the situation of the duodenum. Synonym: impressio duodenalis. (05 Mar 2000) |