| NAHSA | National Association for Hearing and Speech Action |
|---|---|
| PSIL | preferred frequency speech interference level |
| SCRAM | speech-controlled respirometer for ambulation measurement |
| SDL | serum digoxin level; speech discrimination level |
| SDT | sensory detection theory; right sacrotransverse [fetal position] [Lat. sacrodextra transversa]; sign... |
| speech perception | The process whereby an utterance is decoded into a representation in terms of linguistic units (sequences of phonetic segments which combine to form lexical and grammatical morphemes). (12 Dec 1998) |
|---|---|
| speech production measurement | Measurement of parameters of the speech product such as vocal tone, loudness, pitch, voice quality, articulation, resonance, phonation, phonetic structure and prosody. (12 Dec 1998) |
| speech reception threshold test | A test to determine the lowest sound intensity level at which fifty percent or more of the spondaic test words (words of two syllables having equal stress) are repeated correctly. (12 Dec 1998) |
| speech therapist | <specialist> An individual trained to assist patients in restoring speech and communication functions. (05 Mar 2000) |
| staccato speech | An abrupt utterance, each syllable being enunciated separately; noted especially in multiple sclerosis. Synonym: syllabic speech. (05 Mar 2000) |
| subvocal speech | Slight movements of the muscles of speech related to thinking but producing no sound. (05 Mar 2000) |
| syllabic speech | An abrupt utterance, each syllable being enunciated separately; noted especially in multiple sclerosis. Synonym: syllabic speech. (05 Mar 2000) |
| oesophageal speech | Speech produced with air trapped in the oesophagus and forced out again. (12 Dec 1998) |
| echo speech | A disorder of speech where there is an involuntary repetition several times of the same word. (27 Sep 1997) |
| tracheoesophageal speech | A form of alaryngeal speech obtained by a surgical technique which creates a shunt between trachea and oesophagus, allowing pulmonary air to generate upper oesophageal and pharyngeal mucosal vibrations as a substitute for vocal cord vibrations when the larynx is surgically removed. (05 Mar 2000) |
| explosive speech | Loud, sudden speech related to injury of the nervous system. Synonym: logospasm. (05 Mar 2000) |
| anvil sound | In cases of a large pulmonary cavity or of pneumothorax, a clear metallic sound obtained by striking a coin, held against the chest, by another coin, or by flicking the chest wall with one's fingernail; the sound is heard on auscultating the chest wall on the same side anteroposteriorly. Synonym: anvil sound, bell sound, coin test. (05 Mar 2000) |
| atrial sound | The sound produced in late diastole in association with ventricular filling due to atrial systole and related to reduced ventricular compliance. It is a low frequency oscillation that may be normal at older ages owing to a physiologic decline in ventricular compliance but is nearly always abnormal at younger ages if it is of high intensity or palpable. It is common in ventricular hypertrophy, particularly with hypertension, and is almost invariable during acute myocardial infarction. Fourth heart sounds may arise from the right or left ventricle or both. Synonym: atrial sound. (05 Mar 2000) |
| auscultatory sound | A rale, murmur, bruit, fremitus, or other sound heard on auscultation of the chest or abdomen. (05 Mar 2000) |
| bell sound | In cases of a large pulmonary cavity or of pneumothorax, a clear metallic sound obtained by striking a coin, held against the chest, by another coin, or by flicking the chest wall with one's fingernail; the sound is heard on auscultating the chest wall on the same side anteroposteriorly. Synonym: anvil sound, bell sound, coin test. (05 Mar 2000) |