| ICL | idiopathic CD4 T-cell lymphocytopenia; iris-clip lens; isocitrate lyase |
|---|---|
| IOL | induction of labor; intraocular lens |
| PCL | pacing cycle length; persistent corpus luteum; plasma cell leukemia; posterior chamber lens; posteri... |
| Phaco | lens phacoemulsification [ophthalmic cataract surgery] |
| SCL | scleroderma; serum copper level; sinus cycle length; soft contact lens; stromal cell line; subcostal... |
| 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) |
|---|---|
| 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) |
| achromatic lens | A compound lens made of two or more lens's having different indices of refraction, so correlated as to minimise chromatic aberration. (05 Mar 2000) |
| acoustic lens | In ultrasonography, a lens used to focus or diverge a sound beam; may be simulated by electronic manipulation of signals. (05 Mar 2000) |
| anterior pole of lens | The central point on the anterior surface of the lens of the eye. Synonym: polus anterior lentis. (05 Mar 2000) |
| anterior surface of lens | The anterior surface of the lens of the eye. Synonym: facies anterior lentis. (05 Mar 2000) |
| aplanatic lens | A lens designed to correct spherical aberration and coma (q.v.). Synonym: periscopic meniscus. (05 Mar 2000) |
| apochromatic lens | A compound lens designed to correct both spherical and chromatic aberrations. (05 Mar 2000) |
| asphenc lens | <physics> A lens made aplanatic by grinding the outer zones to a greater radius than the inner zones. Aplanatic condensers can be made in this way. A simple aspheric lens is widely used as a lamp condenser because of its efficiency in converging light rays to one focal plane. (05 Aug 1998) |
| aspheric lens | A lens with a paraboloidal surface that eliminates spherical aberration. (05 Mar 2000) |
| astigmatic lens | A lens in which one of the surfaces is curved in one meridian and less curved in the opposite meridian; e.g., a teaspoon or a football. Synonym: astigmatic lens. (05 Mar 2000) |
| axis of lens | A line connecting the anterior and posterior poles of the lens of the eye. Synonym: axis lentis. (05 Mar 2000) |
| back lens | <physics> In any compound lens (a lens system composed of more than one lens element), the last lens through which the light passes is called the back lens. It may be a single simple lens, a doublet, or triplet. See: front lens (05 Aug 1998) |