<B>lumberman, </B>noun, pl. <B>-men.</B><DL COMPACT><DD><B> 1. </B><B>=lumberjack.</B> <DD><B> 2. </B>a man whose work is cutting and preparing timber for use. <DD><B> 3. </B>a man whose work is buying and selling timber or lumber. </DL>
<A NAME="lumbermill">
<B>lumber mill,</B> <B>=sawmill.</B></DL>
<A NAME="lumberport">
<B>lumber port,</B><DL COMPACT><DD> a porthole or opening in the bow or stern of a vessel, for use in loading and unloading lumber. </DL>
<A NAME="lumberroom">
<B>lumber room,</B><DL COMPACT><DD> a room for lumber, or articles not in use. </DL>
<A NAME="lumberyard">
<B>lumberyard, </B>noun.<DL COMPACT><DD> a place where lumber and building supplies are stored and sold. </DL>
<A NAME="lumbosacral">
<B>lumbosacral, </B>adjective.<DL COMPACT><DD> or or having to do with both the lumbar and sacral regions or parts of the body. <BR> <I>Ex. Lumbosacral subluxation [is] a condition in which there is forward slipping of the fifth lumbar vertebra on the sacrum (John S. Batchelor).</I> </DL>
<A NAME="lumbrical">
<B>lumbrical, </B>noun, adjective.<DL COMPACT><DD><I>noun </I> any one of four small muscles in either the hand or the foot that help move the fingers or toes. <DD><I>adj. </I> of or having to do with these muscles. </DL>
<A NAME="lumbricalis">
<B>lumbricalis, </B>noun, pl. <B>-les.</B> <B>=lumbrical.</B></DL>
<A NAME="lumbricoid">
<B>lumbricoid, </B>adjective.<DL COMPACT><DD><B> 1. </B>like an earthworm. <DD><B> 2. </B>of a kind of roundworm common as an intestinal parasite in man. </DL>
<A NAME="lumen">
<B>lumen, </B>noun, pl. <B>-mina,</B> <B>-mens.</B><DL COMPACT><DD><B> 1. </B>(Physics.) a unit of light, equivalent to the amount of light given out per second, through an angle by a point source of one candela radiating equally in all directions. It is the unit of luminous flux. <BR> <I>Ex. Electric lights today are usually compared by lumens instead of by candle power (Karl Lark-Horovitz).</I> <DD><B> 2. </B>(Anatomy.) the space within a tubular organ, such as a blood vessel. <BR> <I>Ex. These were then diluted with physiological saline and were injected directly into the lumen of the gizzard of groups of 3-day old white Leghorn chicks (Science).</I> <DD><B> 3. </B>(Botany.) the central cavity or space within the wall of a cell. </DL>
<B>luminal art,</B><DL COMPACT><DD> a form of art that uses the arrangement or projection of colored electric lights to create images, moving patterns, and flashing designs; luminist art. <BR> <I>Ex. Kinetic art deals with movement, with which a great deal of contemporary work--including most luminal art--is concerned, directly or indirectly (Benjamin de Brie Taylor).</I> </DL>
<A NAME="luminalartist">
<B>luminal artist,</B><DL COMPACT><DD> a person who produces luminal art; luminist. </DL>
<A NAME="luminance">
<B>luminance, </B>noun.<DL COMPACT><DD> the intensity of light in relation to the area of its source; luminosity. <BR> <I>Ex. The sensitivity of the eye to differences in luminance decreases as the luminance increases (New Scientist).</I> </DL>
<B>luminarist, </B>noun.<DL COMPACT><DD> a painter who treats light effectively, or whose color is luminous; luminist. </DL>
<A NAME="luminary">
<B>luminary, </B>noun, pl. <B>-naries,</B> adjective.<DL COMPACT><DD><I>noun </I> <B>1. </B>a heavenly body that gives or reflects light; the sun, moon, or other light-giving body. <BR> <I>Ex. If the earth's orbit were perfectly circular, the earth's movement around the great central luminary would be uniform (H. J. Bernhard).</I> <DD><B> 2. </B>(Figurative.) a famous person. (SYN) celebrity, notable. <DD><B> 3. </B>anything that gives light. <DD><I>adj. </I> having to do with light. </DL>
<B>luminesce, </B>intransitive verb, <B>-nesced,</B> <B>-nescing.</B><DL COMPACT><DD> to exhibit luminescence. <BR> <I>Ex. Green plants were found to luminesce like fireflies, although on a small scale (Science News Letter).</I> </DL>
<A NAME="luminescence">
<B>luminescence, </B>noun.<DL COMPACT><DD> an emission of light occurring at a temperature below that of incandescent bodies. Luminescence includes phosphorescence and fluorescence, and may result from biological or chemical processes. <BR> <I>Ex. The intensity of the luminescence that some rocks give off when heated is an indication of their geologic age (Science News Letter).</I> </DL>
<A NAME="luminescent">
<B>luminescent, </B>adjective.<DL COMPACT><DD><B> 1. </B>giving out light without being much heated. <DD><B> 2. </B>having to do with luminescence. </DL>
<A NAME="luminiferous">
<B>luminiferous, </B>adjective.<DL COMPACT><DD> producing or transmitting light. <BR> <I>Ex. The firefly is a luminiferous insect.</I> </DL>
<A NAME="luminism">
<B>luminism, </B>noun.<DL COMPACT><DD> the art or style of a group of impressionist painters of the late 1800's who made a scientific study of light and color and employed new methods to depict light, chiefly in landscapes. </DL>
<A NAME="luminist">
<B>luminist, </B>noun, adjective.<DL COMPACT><DD><I>noun </I> <B>1. </B><B>=luminarist.</B> <DD><B> 2. </B>a painter using the style of luminism. <DD><B> 3. </B><B>=luminal artist.</B> <DD><I>adj. </I> of luminists or luminism. <BR> <I>Ex. luminist art, luminist landscapes.</I> </DL>
<A NAME="luminometer">
<B>luminometer, </B>noun.<DL COMPACT><DD> an instrument for measuring the intensity of illumination. </DL>
<A NAME="luminosity">
<B>luminosity, </B>noun, pl. <B>-ties.</B><DL COMPACT><DD><B> 1. </B>luminous quality or condition. <DD><B> 2. </B>something luminous; a luminous point or area. <DD><B> 3. </B>the amount of energy in the form of light emitted by the sun or a star. </DL>
<A NAME="luminous">
<B>luminous, </B>adjective.<DL COMPACT><DD><B> 1a. </B>shining by its own light. <BR> <I>Ex. The sun and stars are luminous bodies. Certain animals and plants are luminous.</I> <DD><B> b. </B>emitting a certain amount of light, regardless of its distance. <BR> <I>Ex. Many stars are more luminous than the sun.</I> <DD><B> 2. </B>full of light; shining; bright. <BR> <I>Ex. a luminous sunset.</I> (SYN) glowing, effulgent, refulgent. <DD><B> 3. </B>(Figurative.) easily understood; clear; enlightening. <BR> <I>Ex. Goethe's wide and luminous view (Matthew Arnold); luminous eloquence (Macaulay). The whole performance was luminous and moving (New York Times).</I> (SYN) perspicuous, lucid. <DD><B> 4. </B>well lighted. <BR> <I>Ex. The church of Ashbourne ... is one of the ... most luminous that I have seen (James Boswell).</I> adv. <B>luminously.</B> noun <B>luminousness.</B> </DL>
<B>luminous flux,</B><DL COMPACT><DD> the rate at which light (luminous energy) is transmitted. Its unit is the lumen. <BR> <I>Ex. Radiant flux, evaluated with respect to its capacity to evoke the sensation of brightness, is called luminous flux (Sears and Zemansky).</I> </DL>
<A NAME="luminousintensity">
<B>luminous intensity,</B><DL COMPACT><DD> a measure of the strength of a source of light, equivalent to the luminous flux given out per unit solid angle in a given direction. </DL>
<A NAME="lumme">
<B>lumme, </B>interjection.<DL COMPACT><DD> (British Slang.) an exclamation of surprise. <BR> <I>Ex. Lumme, they're going to charge for going over the bridge (London Times).</I> </DL>
<A NAME="lummox">
<B>lummox, </B>noun.<DL COMPACT><DD> (Informal.) an awkward, stupid person. <BR> <I>Ex. A thoughtful weighing of all aspects would surely convince them that the big lummoxes get their money's worth out of the silliest purchase (Saturday Evening Post).</I> </DL>
<A NAME="lump">
<B>lump</B> (1), noun, verb, adjective.<DL COMPACT><DD><I>noun </I> <B>1. </B>a solid mass of no particular shape, often small. <BR> <I>Ex. a lump of coal; a great lump of beeswax ... which weighed above half a hundred weight (Daniel Defoe).</I> <DD><B> 2. </B>a swelling; bump. <BR> <I>Ex. There is a lump on my head where I bumped it.</I> <DD><B> 3. </B>a lot; mass; heap. <BR> <I>Ex. a lump of money.</I> <DD><B> 4. </B>(Informal.) a stupid person. <DD><B> 5. </B>(Informal.) a big, sturdy person. <BR> <I>Ex. a brave lump of a boy (Samuel Lover). When we were lumps of lads (Hall Caine).</I> <DD><B> 6. </B>(Obsolete.) a collection; clump; cluster. <DD><I>v.i. </I> <B>1. </B>to form into a lump or lumps. <BR> <I>Ex. The cornstarch lumped because we cooked it too fast. The low-humidity atmosphere keeps the sugar from lumping (Wall Street Journal).</I> <DD><B> 2. </B>to move heavily. <DD><B> 3. </B>to rise in a lump or lumps. <DD><B> 4. </B>to act as a lumper or longshoreman. <DD><I>v.t. </I> <B>1. </B>to make lumps of, on, or in. <BR> <I>Ex. He lumped the salt by carelessly getting water into it.</I> <DD><B> 2. </B>to put together; deal with in a mass or as a whole. <BR> <I>Ex. to lump all of one's effort in a single project. We will lump all our expenses.</I> <DD><I>adj. </I> <B>1. </B>in lumps; in a lump. <BR> <I>Ex. lump sugar, lump coal.</I> <DD><B> 2. </B>including a number of items. <BR> <I>Ex. The girls will be given a lump sum of $10 to pay all their expenses.</I> <BR><I>expr. <B>a lump in one's throat,</B> </I>a feeling of inability to swallow, caused by pity, sorrow, or other strong emotion. <BR> <I>Ex. The sad story gave her a lump in her throat.</I> <BR><I>expr. <B>in the lump,</B> </I>in the mass; as a whole. <BR> <I>Ex. He praises or dispraises in the lump (Joseph Addison).</I> <BR><I>expr. <B>lumps,</B> </I>(Informal.) a beating; punishment. <BR> <I>Ex. The Sooners had ... regularly taken their lumps from the likes of Texas (7-40) (Time).</I> </DL>
<A NAME="lump">
<B>lump</B> (2), transitive verb.<DL COMPACT><DD> (Informal.) to put up with; endure. <BR> <I>Ex. If you don't like what I am doing, you can lump it.</I> </DL>
