| FIR | far infrared; fold increase in resistance |
|---|---|
| FTIR | Fourier-transformed infrared; functional terminal innervation ratio |
| IF | idiopathic fibroplasia; idiopathic flushing; immersion foot; immunofluorescence; indirect fluorescen... |
| IFR | infrared; inspiratory flow rate |
| ILS | idiopathic leucine sensitivity; idiopathic lymphadenopathy syndrome; increase in life span; infrared... |
| IR | 1.Near-infrared |
|---|---|
| ATR-FTIR | Attenuated Total Reflectance Fourier-Transform Infrared |
| ATR-FTIR | Attenuated total reflection Fourier transform infrared |
| ATR FT-IR | Attenuated total reflection Fourier transform infrared spectroscopy |
| FTIRM | Fourier Transform Infrared Microspectroscopy |
| Wood's lamp | An ultraviolet lamp with a nickel oxide filter that only passes light with a maximal wavelength of about 3660 A |
|---|---|
| heat lamp | A lamp that emits infrared light and produces heat; used to apply topical heat to the skin. Synonym: thermolamp. (05 Mar 2000) |
| slit lamp | In ophthalmology, an instrument consisting of a combination of a microscope and a narrow beam of collimated light that can be narrowed into a slit and used to examine the eye. Synonym: biomicroscope, Gullstrand's slitlamp. (05 Mar 2000) Previous: slippery, slipping patella, slipping rib, slipping rib cartilage, slitNext: slit lamp, slit microscope, slit pores, slit-shellslit lamp <apparatus, ophthalmology> A special type of examination of the anterior structures of the eye. These include the conjunctiva, sclera, lids, iris, cornea and anterior chamber. The slit lamp is a device which focuses a high intensity light beam (that can be focused as a slit) at the structures of the eye while the examiner looks through a magnifying scope. Eyedrops which numb the eyes and dilate the pupils will often be used prior to examination. The exam is not at all uncomfortable, just time consuming. Diagnoses such as foreign body (to conjunctiva, cornea or sclera), iritis, herpes keratoconjunctivitis, cornmeal ulcer, cataracts, glaucoma and corneal abrasions may be made using this exam. Some foreign bodies can even be removed using the enhanced image amplification of the slit lamp. (19 Jan 1998) |
| spirit lamp | A lamp, used mainly for heating in laboratory work, in which alcohol is burned. (05 Mar 2000) |
| Edridge-Green lamp | A lantern used to test recognition of coloured signals; it displays a single light with colour filters in rotating disks that can be modified to simulate conditions of weather and atmosphere. This test for colour blindness was officially adopted in Great Britain in 1915 in place of the Holmgren wool test, but is now seldom used. (05 Mar 2000) |
| tungsten arc lamp | <apparatus> A lamp having highly compressed tungsten elements. (05 Mar 2000) |
| ultraviolet lamp | A lamp that emits rays in the ultraviolet band of the spectrum. See: ultraviolet. (05 Mar 2000) |
| Kromayer's lamp | A U-shaped quartz lamp of mercury vapor, giving out actinic rays; used in the treatment of skin diseases. (05 Mar 2000) |
| uviol lamp | |
| lamp | 1. A light-producing vessel, instrument or apparatus; especially, a vessel with a wick used for the combustion of oil or other inflammable liquid, for the purpose of producing artificial light. 2. Figuratively, anything which enlightens intellectually or morally; anything regarded metaphorically a performing the uses of a lamp. "Thy word is a lamp unto my feet, and a light unto my path." (Ps. Cxix. 105) "Ages elapsed ere Homer's lamp appeared." (Cowper) 3. <physics> A device or mechanism for producing light by electricity. See Incandescent lamp, under Incandescent. Aeolipile lamp, a hollow ball of copper containing alcohol which is converted into vapor by a lamp beneath, so as to make a powerful blowpipe flame when the vapor is ignited. Arc lamp, any brachiopod shell of the genus Terebratula and allied genera. The name refers to the shape, which is like that of an antique lamp. See Terebratula. Safety lamp, a miner's lamp in which the flame is surrounded by fine wire gauze, preventing the kindling of dangerous explosive gases; called also, from Sir Humphry Davy the inventor, Davy lamp. To smell of the lamp, to bear marks of great study and labour, as a literary composition. Origin: F. Lampe, L. Lampas, -adis, fr. Gr, torch, fr. To give light, to shine. Cf. Lampad, Lantern. Source: Websters Dictionary (01 Mar 1998) |
| actinic ray | A light ray toward and beyond the violet end of the spectrum that acts upon a photographic plate and produces other chemical effects. Synonym: chemical ray. (05 Mar 2000) |
| alpha ray | <physics> A radioactive particle made up of two protons and two neutrons, these particles are created by the decay of a radioactive material or by nuclear bombardment, and they are the same as the nucleus of a helium-4 atom. (09 Oct 1997) |
| ap, X-ray | An X-ray picture in which the beams pass from front-to-back (anteroposterior). As opposed to a PA (posteroanterior) film in which the rays pass through the body from back-to-front. (12 Dec 1998) |
| beta ray | 1. <radiobiology> Original term used for electrons (and positrons) ejected from decaying nuclei via beta emission. (Label derives from the old days when we had various kinds of radiation emission, and they were labelled alpha, beta, and gamma (the first letters of the Greek Alphabet) because no one really knew what any of them were.) 2. A stream of positive or negative electrons ejected with high energy from a disintegrating atomic nucleus; most biomedically used isotopes emit negative particles (electrons or negatrons, rather than positrons). Cathode rays are low-energy negative electrons produced in cathode ray tubes, also called television tubes or oscilloscopes. (12 Sep 2000) |
| gamma ray | <radiobiology> Electromagnetic radiation (photons) with energies greater than (roughly) 100 keV (that is, 100,000 electron volts). Gamma radiation frequently accompanies alpha and beta decays, and always accompanies fission. Gamma rays are highly penetrating and are best shielded against using dense materials, such as lead or depleted uranium. (Gamma rays are similar to X-rays, but are generally higher in energy and nuclear in origin.) Gamma rays have wavelengths of 1 nanometre or shorter. These are highly energised, deeply penetrating photons which can be emitted from an atomic nucleus during nuclear fission (the splitting of an atom) and during regular atomic decay (radioactivity). (13 Oct 1997) |