| auriculopalpebral reflex | Closure of the eye in response to stimulation of the skin at the depth of the external auditory meatus. Synonym: auriculopalpebral reflex. (05 Mar 2000) |
|---|---|
| auriculopressor reflex | Peripheral vasoconstriction and a rise in blood pressure in response to a fall in pressure in the great veins. Synonym: Pavlov's reflex. (05 Mar 2000) |
| auriculotemporal | Relating to the auricle or pinna of the ear and the temporal region. (05 Mar 2000) |
| auriculotemporal nerve | <anatomy, nerve> A branch of the mandibular, usually arising by two roots embracing the middle meningeal artery; it passes through the parotid gland conveying post-synaptic parasympathetic secretomotor fibres from the otic ganglion, and continuing to terminate in the skin of the temple and scalp; also sends branches to the external acoustic meatus, tympanic membrane, and auricle as well as a communicating branch to the facial nerve. Synonym: nervus auriculotemporalis. (05 Mar 2000) |
| auriculotemporal nerve syndrome | <syndrome> Localised flushing and sweating of the ear and cheek in response to eating. Synonym: Frey's syndrome, gustatory sweating syndrome. (05 Mar 2000) |
| auriculoventricular | An obsolete synonym for atrioventricular. (05 Mar 2000) |
| auriculoventricular groove | A groove on the outer surface of the heart marking the division between the atria and the ventricles. Synonym: sulcus coronarius, atrioventricular groove, atrioventricular sulcus, auriculoventricular groove, coronary sulcus. (05 Mar 2000) |
| auriculoventricular interval | The time between depolarisation of the atria and of the ventricle. Synonym: atrioventricular interval. (05 Mar 2000) |
| aurid | A skin lesion due to injection of gold salts. Origin: L. Aurum, gold, + -id (05 Mar 2000) |
| auriferous | Gold-bearing; containing or producing gold. "Whence many a bursting stream auriferous plays." (Thomson) ~ pyrites, iron pyrites (iron disulphide), containing some gold disseminated through it. Origin: L. Aurifer; aurum gold + ferre to bear: cf. F. Aurifere. Source: Websters Dictionary (01 Mar 1998) |
| auriform | Ear-shaped. (05 Mar 2000) |
| auriga | <anatomy> The Charioteer, or Wagoner, a constellation in the northern hemisphere, situated between Perseus and Gemini. It contains the bright star Capella. Origin: L, charioteer. Source: Websters Dictionary (01 Mar 1998) |
| aurigraphy | The art of writing with or in gold. Origin: L. Aurum gold. Source: Websters Dictionary (01 Mar 1998) |
| aurin | <chemistry> A red colouring matter derived from phenol; called also, in commerce, yellow coralin. Origin: L. Aurum gold. Source: Websters Dictionary (01 Mar 1998) |
| aurintricarboxylic acid | <chemical> 5-((3-carboxy-4-hydroxyphenyl)(3-carboxy-4-oxo-2,5-cyclohexadien-1-ylidene)methyl)-2-hydroxybenzoic acid. A dye which inhibits protein biosynthesis at the initial stages. The ammonium salt (aluminon) is a reagent for the colourimetric estimation of aluminum in water, foods, and tissues. Chemical name: Benzoic acid, 5-((3-carboxy-4-hydroxyphenyl)(3-carboxy-4-oxo-2,5-cyclohexadien-1-ylidene)methyl)-2-hydroxy- (12 Dec 1998) |