| ANT | acoustic noise test; adenine nucleotide translocator; aminonitrothiazole; anterior |
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| ART | absolute retention time; Accredited Record Technician; acoustic reflex test; algebraic reconstructio... |
| EAM | episodic ataxia with myokymia; external acoustic meatus |
| SAM | S-adenosyl-L-methionine; scanning acoustic microscope; senescence accelerated mouse; sex arousal mec... |
| SLAM | scanning laser acoustic microscope; systemic lupus erythematosus activity measure |
| Embden-Meyerhof-Parnas pathway | A pathway that degrades glucose to pyruvate, the six-carbon stage converts glucose to fructose-1,6-bisphosphate, and the three-carbon stage produces ATP while changing glyceraldehyde-3-phosphate to pyruvate. Compare: Entner-Doudoroff pathway. (09 Oct 1997) |
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| Embden-Meyerhof pathway | The main pathway for anerobic degradation of carbohydrate. Starch or glycogen is hydrolysed to glucose 1 phosphate and then through a series of intermediates, yielding two ATP molecules per glucose and producing either pyruvate which feeds into the tricarboxylic acid cycle) or lactate. (18 Nov 1997) |
| Entner-Douderoff pathway | A degradative pathway for carbohydrates in certain microorganisms (e.g., Pseudomonas sp.) that lack hexokinase, phosphofructokinase, and glyceraldehyde-3-phosphate dehydrogenase. (05 Mar 2000) |
| Entner-Doudoroff pathway | <biochemistry> A pathway that converts glucose to pyruvate and glyceraldehyde-3 phosphate by producing 6-phosphogluconate and then dehydrating it. (09 Oct 1997) |
| extrinsic pathway | <haematology> Initiation of blood clotting as a result of factors released from damaged tissue, as opposed to contact with a foreign surface (the intrinsic pathway). Tissue thromboplastin (Factor III) in conjunction with Factor VII proconvertin) will activate Factor X that, once activated, converts prothrombin to thrombin. (27 Jun 1999) |
| 4-aminobutyrate pathway | The pathway that ultimately converts 4-aminobutyrate to succinate; succinate is then converted to alpha-ketoglutarate, via the tricarboxylic acid cycle, which is then acted upon by glutamate dehydrogenase; glutamate is then decarboxylated to reform 4-aminobutyrate; an important pathway for those cells which make this neuroactive molecule. Synonym: GABA pathway. (05 Mar 2000) |
| lysogenic pathway | <virology> The method by which a virus becomes a dormant, passive part of its host bacterium's genome (a lysogenic virus), choosing to insert its DNA into the host's and postponing completion of its lytic cycle, at which time it destroys the host and spreads its progeny to infect other bacterial cells (enters the lytic pathway). (09 Oct 1997) |
| lytic pathway | The steps in the method that a virus takes to complete a lytic cycle, including the production and assembly of progeny viruses with host cell machinery and the destruction of the host cell by rupturing its plasma membrane (lysis), releasing the progeny viruses in the process. (09 Oct 1997) |
| acoustic | Pertaining to the sense of hearing, the organs of hearing, or the science of sounds; auditory. Acoustic duct, the auditory duct, or external passage of the ear. Acoustic telegraph, a telegraph making audible signals; a telephone. Acoustic vessels, brazen tubes or vessels, shaped like a bell, used in ancient theaters to propel the voices of the actors, so as to render them audible to a great distance. Origin: F. Acoustique, Gr. Relating to hearing, fr. To hear. A medicine or agent to assist hearing. Source: Websters Dictionary (01 Mar 1998) |
| acoustic agraphia | The inability to write from dictation. (05 Mar 2000) |
| acoustic aphasia | An impairment in comprehension of the auditory forms of language and communication, including the ability to write from dictation in the presence of normal hearing. Spontaneous speech, reading, and writing are not affected. Synonym: acoustic aphasia, word deafness. (05 Mar 2000) |
| acoustic area | The floor of the lateral recess of the fourth ventricle, extending medially to the limiting sulcus and overlying the cochlear and vestibular nuclei of the rhombencephalon. Synonym: area acustica. (05 Mar 2000) |
| acoustic cell | A hair cell of the organ of Corti. (05 Mar 2000) |
| acoustic crest | An elevation on the inner surface of the ampulla of each saemicircular duct; filaments of the vestibular nerve pass through the crista to reach hair cells on its surface; the hair cells are capped by the cupula, a gelatinous protein-polysaccharide mass. Synonym: crista ampullaris, acoustic crest, transverse septum. (05 Mar 2000) |
| acoustic enhancement | A manifestation of increased acoustic signal amplitude returning from regions beyond an object which causes little or no attenuation of the sound beam. Compare: acoustic shadow. (05 Mar 2000) |