| typhus, murine | An acute infectious disease with fever, headache, and rash, all quite similar to, but milder than, epidemic typhus, caused by a related microoganism, rickettsia typhi (mooseri), transmitted to humans by rat fleas (xenopsylla cheopis). The animal reservoir includes rats, mice and other rodents. Murine typhus occurs sporadically worldwide but is more prevalent in congested rat-infested urban areas. Also known as endemic typhus, rat-flea typhus, and urban typhus of malaya. (12 Dec 1998) |
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| Friend murine erythroleukaemia cell | <cell culture> Lines of mouse erythroblasts transformed by the Friend virus, that can be induced to differentiate terminally, producing haemoglobin, by various agents such as dimethyl sulphoxide. (18 Nov 1997) |
| Friend murine leukaemia virus | <virology> Murine leukaemia virus isolated by Charlotte Friend in 1956 whilst attempting to transmit the Erlich ascites tumour by cell free extracts. Causes an unusual erythroblastosis like leukaemia, in which anaemia is accompanied by large numbers of nucleated red cells in blood. does not carry a host derived oncogene, but seems to induce tumours by proviral insertion into specific regions of host genome. (18 Nov 1997) |
| leukaemia viruses, murine | Species of mammalian type c retroviruses (retroviruses type c, mammalian) producing leukaemia in mice. It is commonly induced by injecting filtrates of propagable tumours into newborn mice. The gross strain (gross virus) occurs spontaneously in inbred mice, but none of the other strains occurs naturally. (12 Dec 1998) |
| anterior notch of ear | A notch between the supratragic tubercle and the crus of the helix. Synonym: incisura anterior auris, anterior auricular groove, auricular notch, sulcus auriculae anterior. (05 Mar 2000) |
| anterior wall of middle ear | It contains the carotid canal and the opening of the auditory tube. Synonym: paries caroticus cavi tympani, anterior wall of middle ear, carotid wall of middle ear. (05 Mar 2000) |
| aviator's ear | See Aerotitis. (12 Dec 1998) |
| Aztec ear | An auricle with the lobule absent. (05 Mar 2000) |
| bat ear | Congenital deformity of the external ear, with poor development of helix and anthelix. Synonym: bat ear. (05 Mar 2000) |
| bear's-ear | <botany> A kind of primrose (Primula auricula), so called from the shape of the leaf. Source: Websters Dictionary (01 Mar 1998) |
| benign ear cyst | A disorder where there are noncancerous lumps or growths within the ear canal or on the pinna of the ear (external ear). most lumps are sebaceous cysts but some are bony overgrowths known as exostoses (or osteomas). If large enough they may interfere with hearing. In this case surgical removal may be required. (27 Sep 1997) |
| boxer's ear | Thickening and induration of the ear with distortion of contours following extravasation of blood within its tissues. Synonym: boxer's ear. (05 Mar 2000) |
| Cagot ear | An auricle having no lobulus. Origin: a people in the Pyrenees among whom physical stigmata are common (05 Mar 2000) |
| malrotated ear | An ear that is slanted more than usual. Technically, an ear is slanted when the angle of the slope of the auricle is more than 15 degrees from the perpendicular. Slanted ears are considered a minor anomaly. The presence of 2 or more minor anomalies in a child increases the probability that the child has a major malformation. (12 Dec 1998) |
| carotid wall of middle ear | It contains the carotid canal and the opening of the auditory tube. Synonym: paries caroticus cavi tympani, anterior wall of middle ear, carotid wall of middle ear. (05 Mar 2000) |