| objective psychology | Psychology as studied by observation of the behaviour and mental functions in others. (05 Mar 2000) |
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| objective sensation | A sensation caused by a verifiable stimulus. Primary sensation, a sensation that is the direct result of a stimulus. Referred sensation, a sensation felt in one place in response to a stimulus applied in another. Synonym: reflex sensation, transferred sensation. (05 Mar 2000) |
| objective sign | <clinical sign> A sign that is evident to the examiner. (05 Mar 2000) |
| objective symptom | A symptom that is evident to the observer. (05 Mar 2000) |
| objective synonym | <zoology> Each of two or more different names applied to one and the same taxon based on the same type. See: Synonym. (09 Jan 1998) |
| environmental quality objective | This is a regulatory value defining the quality to be aimed for in a particular aspect of the environment. Unlike an environmental quality standard, an EQO is not usually expressed in quantitative terms and cannot be enforced legally. (09 Oct 1997) |
| fluorite objective | Microscope objective corrected for spherical and chromatic aberration at two wavelengths. Better than an ordinary objective corrected at one wavelength but inferior to (and much cheaper than) a planapochromatic objective. (18 Nov 1997) |
| auditory vertigo | <neurology> A name applied to recurrent vertigo accompanied by ringing in the ears (tinnitus) and deafness. A dysfunction of the semi-circular canals (endolymphatic sac) in the inner ear. Symptoms include dizziness, hearing loss (one-sided), vertigo, nausea, vomiting and abnormal eye movements. Treatment includes anticholinergics, antihistamines and other medications which relieve vertigo. Diuretic medications have been used to lower pressure in the endolymphatic sac. (27 Sep 1997) |
| aural vertigo | Vertigo caused by disease of the internal ear or pressure of cerumen on the drum membrane. Non-specific term for vertigo caused by labyrinthine disorders. (05 Mar 2000) |
| benign paroxysmal postural vertigo | A recurrent, brief form of postural vertigo occurring in clusters; believed to result from displaced remnants of utricular otoconia. Synonym: cupulolithiasis. (05 Mar 2000) |
| benign positional vertigo | Brief attacks of paroxysmal vertigo and nystagmus that occur solely with certain head movements or positions, e.g., with neck extension; due to labyrinthine dysfunction. Synonym: positional vertigo of Barany, postural vertigo. (05 Mar 2000) |
| gastric vertigo | Vertigo symptomatic of disease of the stomach. Synonym: Trousseau's syndrome. (05 Mar 2000) |
| paralyzing vertigo | A paroxysmal attack of severe vertigo, not accompanied by deafness or tinnitus, which affects young to middle-aged adults, often following a non-specific upper respiratory infection; due to unilateral vestibular dysfunction. Synonym: endemic paralytic vertigo, epidemic vertigo, Gerlier's disease, kubisagari, kubisagaru, paralyzing vertigo. (05 Mar 2000) |
| vertical vertigo | Dizziness experienced when standing upright. (05 Mar 2000) |
| vertigo | <neurology, symptom> An illusion of movement, a sensation as if the external world were revolving around the patient (objective vertigo) or as if he himself were revolving in space (subjective vertigo). The term is sometimes erroneously used to mean any form of dizziness. Origin: L. Vertigo (18 Nov 1997) |