<B>cyclophoria, </B>noun.<DL COMPACT><DD> involuntary rotation of the eyeball, tilting the vertical axis to the side, due to weakness of the oblique muscles. </DL>
<A NAME="cyclophosphamide">
<B>cyclophosphamide, </B>noun.<DL COMPACT><DD> a drug related to nitrogen mustard, used in the treatment of various cancers and to suppress the rejection of transplanted tissue. </DL>
<A NAME="cyclopia">
<B>cyclopia, </B>noun.<DL COMPACT><DD> a massive abnormality in which the eyes are partly or wholly fused. </DL>
<A NAME="cyclopic">
<B>Cyclopic, </B>adjective.<DL COMPACT><DD> belonging to or like a Cyclops; monstrous; Cyclopean. <BR> <I>Ex. poking television's Cyclopic eye into every nook and cranny of the amphitheatre (Time).</I> </DL>
<A NAME="cycloplegia">
<B>cycloplegia, </B>noun.<DL COMPACT><DD> paralysis of the ciliary muscle of the eye. </DL>
<A NAME="cycloplegic">
<B>cycloplegic, </B>noun, adjective.<DL COMPACT><DD><I>noun </I> a remedy or agent for treating cycloplegia. <DD><I>adj. </I> of or producing cycloplegia. </DL>
<A NAME="cyclopropane">
<B>cyclopropane, </B>noun.<DL COMPACT><DD> a colorless, saturated, gaseous hydrocarbon considered as a closed ring of three methylene radicals, used as an anesthetic. </DL>
<A NAME="cyclops">
<B>Cyclops, </B>noun, pl. <B>Cyclopes.</B><DL COMPACT><DD> (Greek Legend.) one of a group of giants with one eye in the middle of the forehead. </DL>
<A NAME="cyclops">
<B>cyclops, </B>noun, pl. <B>-clops.</B><DL COMPACT><DD> any one of a group of tiny free-swimming crustaceans having a single eye in the middle of the head region; water flea. </DL>
<A NAME="cyclorama">
<B>cyclorama, </B>noun.<DL COMPACT><DD><B> 1. </B>a large picture of a landscape, battle, or other scene, on the wall of a circular room. <DD><B> 2. </B>a curved curtain or backdrop on a stage, used to give the illusion of distance or unlimited space in the background. </DL>
<A NAME="cycloramic">
<B>cycloramic, </B>adjective.<DL COMPACT><DD> having to do with or like a cyclorama. </DL>
<A NAME="cyclose">
<B>cyclose, </B>noun.<DL COMPACT><DD> (Chemistry.) a sugar containing a closed carbon chain in the molecule. </DL>
<A NAME="cycloserine">
<B>cycloserine, </B>noun.<DL COMPACT><DD> an antibiotic formed in cultures of various species of streptomyces, used in the treatment of tuberculosis and certain other bacterial infections; Seromycin. </DL>
<A NAME="cyclosis">
<B>cyclosis, </B>noun.<DL COMPACT><DD> (Biology.) the rotary streaming movement of protoplasm in a cell, especially of the endoplasm. </DL>
<A NAME="cyclosporine">
<B>cyclosporine, </B>or <B>cyclosporin,</B> noun.<DL COMPACT><DD> an immunosuppressive drug derived from certain brown algae, effective in stopping the rejection of transplanted tissue without destroying the body's immune system. </DL>
<A NAME="cyclostomata">
<B>Cyclostomata, </B>noun pl.<DL COMPACT><DD> the class of vertebrates comprising the cyclostomes. </DL>
<B>cyclostomatous, </B>adjective.<DL COMPACT><DD><B> 1. </B>having a circular mouth. <DD><B> 2. </B>belonging to the cyclostomes. </DL>
<A NAME="cyclostome">
<B>cyclostome, </B>noun, adjective.<DL COMPACT><DD><I>noun </I> any animal of a class of slender, snakelike fishes, having a round, sucking mouth and no jaws. Lampreys and hagfishes belong to this class. <DD><I>adj. </I> of or belonging to this class. </DL>
<B>cyclostyle, </B>noun, verb, <B>-styled,</B> <B>-styling.</B><DL COMPACT><DD><I>noun </I> an apparatus for printing copies of writing by means of a stencil. <DD><I>v.t. </I> to copy by means of a cyclostyle. <BR> <I>Ex. to cyclostyle a letter.</I> </DL>
<A NAME="cycloteacher">
<B>Cyclo-teacher, </B>noun.<DL COMPACT><DD> (Trademark.) a teaching machine using printed disks for programmed instruction. </DL>
<A NAME="cyclothem">
<B>cyclothem, </B>noun.<DL COMPACT><DD> (Geology.) a series of beds deposited in one sedimentary cycle. </DL>
<A NAME="cyclothyme">
<B>cyclothyme, </B>noun.<DL COMPACT><DD><B> 1. </B>a person who alternates between liveliness and depression. <DD><B> 2. </B><B>=manic-depressive.</B> </DL>
<A NAME="cyclothymia">
<B>cyclothymia, </B>noun.<DL COMPACT><DD> alternation of liveliness and depression. </DL>
<A NAME="cyclothymic">
<B>cyclothymic, </B>adjective, noun.<DL COMPACT><DD><I>adj. </I> <B>1. </B>alternating between liveliness and depression. <DD><B> 2. </B><B>=manic-depressive.</B> <DD><I>noun </I> <B>=cyclothyme.</B> </DL>
<A NAME="cyclotomy">
<B>cyclotomy, </B>noun.<DL COMPACT><DD><B> 1. </B>(Surgery.) an operation for division of the ciliary muscle, practiced to relieve tension in glaucoma. <DD><B> 2. </B>(Mathematics.) the theory of the partition of the circle. </DL>
<A NAME="cyclotron">
<B>cyclotron, </B>noun.<DL COMPACT><DD><B> 1. </B>a particle accelerator that greatly increases the speed and energy of protons and other atomic particles; atom smasher. An alternating electric field in a constant magnetic field accelerates the particles in a spiral path away from their sources and causes the particles to collide with nuclei at very high velocities, and break up atoms and cause radioactivity. <DD><B> 2. </B>an apparatus for developing large beam currents by passing positive ions through repeated accelerating potentials. </DL>
<B>cygnet, </B>noun.<DL COMPACT><DD><B> 1. </B>a young swan. <DD><B> 2. </B>a highly energetic and penetrating form of radiation believed to come from the constellation Cygnus and certain other celestial sources. <BR> <I>Ex. These cygnets have become the ugly ducklings of underground astronomy (Science News).</I> </DL>
<A NAME="cygni">
<B>Cygni, </B>noun,<DL COMPACT><DD> genitive of <B>Cygnus.</B> </DL>
<A NAME="cygnus">
<B>Cygnus, </B>noun, genitive (def. 2) <B>Cygni.</B><DL COMPACT><DD><B> 1. </B>(Greek Mythology.) the swan into which Zeus changed himself when he visited Leda to court her. <DD><B> 2. </B>a northern constellation in the Milky Way, seen by ancient astronomers as having the rough outline of a swan in flight; Swan. </DL>
<B>cylices, </B>noun.<DL COMPACT><DD> the plural of <B>cylix.</B> </DL>
<A NAME="cylinder">
<B>cylinder, </B>noun, verb.<DL COMPACT><DD><I>noun </I> <B>1a. </B>a solid bounded by two equal, parallel circles and by a curved surface, formed by moving a straight line of fixed length so that its ends always lie on the two parallel circles. In a right circular cylinder the circles are perpendicular to the line; in an oblique circular cylinder they are not. <DD><B> b. </B>a solid bounded by two parallel planes and a curved surface formed by moving a straight line so that it constantly describes a given curve and remains parallel to its original position. <DD><B> c. </B>a curved surface formed by either of these motions. <DD><B> d. </B>the volume of any such solid. <DD><B> 2. </B>any long, round object, solid or hollow, with flat ends. <BR> <I>Ex. Tin cans and rollers are cylinders.</I> <DD><B> 3. </B>the rotating part of a revolver that contains chambers for cartridges. <DD><B> 4a. </B>the piston chamber of an internal-combustion engine. <DD><B> b. </B>the barrel of a pump. <DD><B> 5. </B>(Printing.) <DD><B> a. </B>a revolving drum, forming part of a flat-bed press, which produces the impression. <DD><B> b. </B>one of two or more revolving drums on a rotary press which carry the printing plate or the blanket or receive the impression. <DD><B> 6. </B>(Archaeology.) <DD><B> a. </B>a cylindrical stone seal used by the Babylonians and Assyrians. <DD><B> b. </B>a hollow, barrel-shaped object of baked clay bearing cuneiform inscriptions. <DD><B> 7a. </B>a vessel or container having the form of a cylinder. <DD><B> b. </B>its contents. <DD><I>v.t. </I> <B>1. </B>to furnish with a cylinder or cylinders. <DD><B> 2. </B>to subject to the action of a cylinder or cylinders. </DL>
<A NAME="cylinderblock">
<B>cylinder block,</B> <B>=engine block.</B></DL>
<A NAME="cylindergate">
<B>cylinder gate,</B><DL COMPACT><DD> a cylindrical gate or valve used to regulate the amount of water flowing to a turbine. </DL>
<A NAME="cylinderhead">
<B>cylinder head,</B><DL COMPACT><DD> a detachable plate closing the end of the cylinder or engine block of an internal-combustion engine and sometimes carrying the valves. </DL>
<A NAME="cylinderoil">
<B>cylinder oil,</B><DL COMPACT><DD> a heavy, viscous grade of oil for lubricating the cylinder of a steam engine. </DL>
<A NAME="cylinderpress">
<B>cylinder press,</B><DL COMPACT><DD> a printing press in which one revolving cylinder forces the paper against the form, which is moved back and forth on a flat bed. </DL>
<A NAME="cylindraceous">
<B>cylindraceous, </B>adjective.<DL COMPACT><DD> like a cylinder; shaped like a cylinder. </DL>
<B>cylindrical, </B>adjective.<DL COMPACT><DD><B> 1. </B>shaped like a cylinder; having the form of a cylinder. Cans of fruit, candles, and water pipes are usually cylindrical. <DD><B> 2. </B>of or having to do with a cylinder. adv. <B>cylindrically.</B> </DL>
<A NAME="cylindricality">
<B>cylindricality, </B>noun.<DL COMPACT><DD> cylindrical quality or form. </DL>
<A NAME="cylindrite">
<B>cylindrite, </B>noun.<DL COMPACT><DD> a sulfide of lead, antimony, and tin, occurring in massive forms with concentric cylindrical structure, found in Bolivia. </DL>
<A NAME="cylindroid">
<B>cylindroid, </B>noun, adjective.<DL COMPACT><DD><I>noun </I> a solid having the form of a cylinder with equal and parallel elliptical bases. <DD><I>adj. </I> <B>1. </B>like a cylinder. <DD><B> 2. </B>like a cylindroid. </DL>
<A NAME="cylix">
<B>cylix, </B>noun, pl. <B>cylices.</B><DL COMPACT><DD> a shallow drinking cup with a tall stem and two handles, used in ancient Greece. Also, <B>kylix.</B> </DL>
<A NAME="cyllenian">
<B>Cyllenian, </B>adjective.<DL COMPACT><DD> of or having to do with Hermes (Mercury), said to have been born on Mount Cyllene in Greece. </DL>
<A NAME="cym">
<B>Cym.,</B><DL COMPACT><DD> Cymric. </DL>
<A NAME="cyma">
<B>cyma, </B>noun, pl. <B>-mae.</B><DL COMPACT><DD><B> 1. </B>a molding whose outline is concave and convex. <DD><B> 2. </B>(Botany.) a cyme. </DL>
