| impression compound | A thermoplastic material usually composed of gum damar and prepared chalk, used especially for making dental impressions. Synonym: impression compound, modeling composition, modeling compound. (05 Mar 2000) |
|---|---|
| impression for costoclavicular ligament | <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) |
| impression material | Any substance or combination of substances used for making a negative reproduction or impression. (05 Mar 2000) |
| impressiones digitatae | The depressions on the inner surface of the skull which correspond to the convolutions of the brain. Synonym: impressiones digitatae, digitate impressions. (05 Mar 2000) |
| impressions | <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. (05 Mar 2000) |
| impressions for cerebral gyri | The depressions on the inner surface of the skull which correspond to the convolutions of the brain. Synonym: impressiones digitatae, digitate impressions. (05 Mar 2000) |
| impressions of oesophagus | Three narrowings of the oesophagus normally demonstrated radiographically following a barium swallow: the upper or pharyngeal oesophageal constriction, at the beginning of the oesophagus, is caused by the cricopharyngeus muscle, often referred to as the superior oesophageal sphincter; the middle or aortic constriction is a left-sided narrowing due to the oesophagus passing the aortic arch; the inferior or diaphragmatic oesophageal constriction corresponds to the passage of the oesophagus through the oesophageal hiatus of the diaphragm. Synonym: impressions of oesophagus. (05 Mar 2000) |
| impressive aphasia | Aphasia in which there is impairment in the comprehension of spoken and written words, associated with effortless, articulated, but paraphrasic, speech and writing; malformed words, substitute words, and enologisms are charcteristic. When severe, and speech is incomprehensible, it is called jargon aphasia. The patient often appears unaware of his deficit. Synonym: fluent aphasia, impressive aphasia, posterior aphasia, psychosensory aphasia, receptive aphasia, Wernicke's aphasia. (05 Mar 2000) |
| impressment | The act of seizing for public use, or of impressing into public service; compulsion to serve; as, the impressment of provisions or of sailors. "The great scandal of our naval service impressment died a protracted death." (J. H. Burton) Source: Websters Dictionary (01 Mar 1998) |
| impressure | Dent; impression. Origin: Cf. OF. Impressure, LL. Impressura. Source: Websters Dictionary (01 Mar 1998) |