<B>infrared, </B>adjective, noun.<DL COMPACT><DD><I>adj. </I> of the invisible part of the spectrum, whose rays have wave lengths longer than those of the red part of the visible spectrum and shorter than those of microwaves. Most of the heat from sunlight, incandescent lamps, carbon arcs, and resistance wires is from infrared rays. <DD><I>noun </I> the infrared part of the spectrum. </DL>
<A NAME="infraredastronomy">
<B>infrared astronomy,</B><DL COMPACT><DD> the branch of astronomy that utilizes infrared rays to detect nebulae and stars otherwise invisible. </DL>
<A NAME="infrareddetector">
<B>infrared detector,</B><DL COMPACT><DD> a device sensitive to infrared radiation, used in such varying applications as guided-missile tracking and navigation and high-altitude aerial mapping. </DL>
<A NAME="infraredradiation">
<B>infrared radiation,</B><DL COMPACT><DD> electromagnetic radiation with wave lengths longer than those of the red part of the visible spectrum. </DL>
<A NAME="infrascope">
<B>infrascope, </B>noun.<DL COMPACT><DD> an instrument for observing and measuring infrared radiation. </DL>
<A NAME="infrasonic">
<B>infrasonic, </B>adjective.<DL COMPACT><DD> having a frequency below the audible range. </DL>
<A NAME="infrasonics">
<B>infrasonics, </B>noun.<DL COMPACT><DD> the study of sound waves having a frequency below the audible range (less than 10 vibrations a second). </DL>
<A NAME="infrasound">
<B>infrasound, </B>noun.<DL COMPACT><DD> sound below the audible range. </DL>
<A NAME="infraspecific">
<B>infraspecific, </B>adjective.<DL COMPACT><DD> occurring within a species. </DL>
<A NAME="infrastructural">
<B>infrastructural, </B>adjective.<DL COMPACT><DD> of, having todo with, or like an infrastructure. </DL>
<A NAME="infrastructure">
<B>infrastructure, </B>noun.<DL COMPACT><DD> the essential elements forming the basis of a system or structure. <BR> <I>Ex. The infrastructure of the French economy--the transport system, for example--is now perhaps the best in Europe (Listener).</I> </DL>
<A NAME="infrequence">
<B>infrequence, </B>noun. =infrequency.</DL>
<A NAME="infrequency">
<B>infrequency, </B>noun.<DL COMPACT><DD> the fact or condition of being infrequent; uncommonness; scarcity; rarity. </DL>
<A NAME="infrequent">
<B>infrequent, </B>adjective.<DL COMPACT><DD> not frequent; occurring seldom or far apart; scarce; rare. <BR> <I>Ex. words of infrequent occurrence, an infrequent visitor, a coast with infrequent lighthouses, a flowering plant which is infrequent in this region.</I> adv. <B>infrequently.</B> </DL>
<A NAME="infringe">
<B>infringe, </B>verb, <B>-fringed,</B> <B>-fringing.</B><DL COMPACT><DD><I>v.t. </I> <B>1. </B>to act contrary to or violate (a law, obligation, or right); transgress; <BR> <I>Ex. A false label infringes the food and drug law. The inventor sued the company for infringing his patent.</I> (SYN) break. <DD><B> 2. </B>(Obsolete.) to break down; invalidate. <DD><B> 3. </B>(Obsolete.) to frustrate. <DD><I>v.i. </I> to go beyond the proper or usual limits; trespass; encroach. <BR> <I>Ex. Do not infringe upon the rights of others.</I> (SYN) intrude. noun <B>infringer.</B> </DL>
<A NAME="infringement">
<B>infringement, </B>noun.<DL COMPACT><DD><B> 1. </B>a violation. <BR> <I>Ex. Necessity is the plea for every infringement of human freedom. It is the argument of tyrants; it is the creed of slaves (William Pitt).</I> (SYN) breach. <DD><B> 2. </B>the act of trespassing. (SYN) encroachment, intrusion. </DL>
<B>infundibuliform, </B>adjective.<DL COMPACT><DD> funnel-shaped. <BR> <I>Ex. an infundibuliform flower.</I> </DL>
<A NAME="infundibulum">
<B>infundibulum, </B>noun, pl. <B>-la.</B><DL COMPACT><DD> (Biology.) a funnel-shaped part, organ, or structure, such as the prolongation of the third ventricle of the brain, connecting with the pituitary gland. </DL>
<A NAME="infuriate">
<B>infuriate, </B>verb, <B>-ated,</B> <B>-ating,</B> adjective.<DL COMPACT><DD><I>v.t. </I> to fill with wild, fierce anger; make furious; enrage. <BR> <I>Ex. Their insults infuriated him.</I> <DD><I>adj. </I> excited to fury; full of fury; maddened; enraged. <BR> <I>Ex. Inflamed beyond the most infuriate wrath Of the worst monsterthat e'er roamed the waste (James Thomson).</I> (SYN) raging, frantic. adv. <B>infuriately.</B> adv. <B>infuriatingly.</B> noun <B>infuriation.</B> </DL>
<A NAME="infuscate">
<B>infuscate, </B>adjective.<DL COMPACT><DD> clouded with brown; darkened. </DL>
<A NAME="infuscated">
<B>infuscated, </B>adjective. =infuscate.</DL>
<A NAME="infuse">
<B>infuse, </B>transitive verb, <B>-fused,</B> <B>-fusing.</B><DL COMPACT><DD><B> 1. </B>to put in; pour in; instill. <BR> <I>Ex. The captain infused his own courage into his soldiers.</I> (SYN) implant. <DD><B> 2. </B>to inspire. <BR> <I>Ex. The soldiers were infused with his courage.</I> (SYN) imbue. <DD><B> 3. </B>to steep or soak (a plant or leaves) in a liquid. <BR> <I>Ex. Tea leaves are infused in hot water to make tea.</I> <DD><B> 4. </B>(Obsolete.) to pour (a liquid) into a place or vessel. </DL>
<A NAME="infuser">
<B>infuser, </B>noun.<DL COMPACT><DD><B> 1. </B>a person or thing that infuses. <DD><B> 2. </B>a device for automatically injecting at preset intervals a dose of a drug into a person's vein. It is strapped to the arm and consists of a hypodermic syringe and a tiny battery-operated motor. <BR> <I>Ex. Patients with osteoporosis ... could also be helped by using infusers to inject low doses of parathyroid hormones (New York Post).</I> </DL>
<A NAME="infusibility">
<B>infusibility, </B>noun.<DL COMPACT><DD> an incapability of being fused or dissolved. </DL>
<A NAME="infusible">
<B>infusible</B> (1), adjective.<DL COMPACT><DD> that cannot be fused or melted. noun <B>infusibleness.</B> </DL>
<A NAME="infusible">
<B>infusible</B> (2), adjective.<DL COMPACT><DD> that can be infused. </DL>
<A NAME="infusion">
<B>infusion, </B>noun.<DL COMPACT><DD><B> 1. </B>the act or process of infusing. <BR> <I>Ex. The plan was changed by the infusion of new ideas.</I> <DD><B> 2. </B>a liquid extract obtained by steeping or soaking. <BR> <I>Ex. Tea is an infusion of tea leaves in hot water.</I> <DD><B> 3. </B>something infused; something poured in or mingled; mixture. <BR> <I>Ex. He was a gentle man with a slight infusion of the footman (Charles Lamb).</I> (SYN) tincture. <DD><B> 4. </B>(Medicine.) the injection of a saline or other solution into a vein. <DD><B> 5. </B>(Biology.) a liquid suspension of decaying organic matter used as a culture medium. </DL>
<A NAME="infusionism">
<B>infusionism, </B>noun.<DL COMPACT><DD> the doctrine that the soul has existed in a previous state and is infused into the body at conception or birth. noun <B>infusionist.</B> </DL>
<A NAME="infusive">
<B>infusive, </B>adjective.<DL COMPACT><DD> having the quality or power of infusing. </DL>
<A NAME="infusoria">
<B>infusoria, </B>noun pl.,<DL COMPACT><DD> the infusorians. </DL>
<A NAME="infusorial">
<B>infusorial, </B>adjective.<DL COMPACT><DD> having to do with or containing infusorians. <BR> <I>Ex. infusorial strata.</I> </DL>
<A NAME="infusorian">
<B>infusorian, </B>noun, adjective.<DL COMPACT><DD><I>noun </I> any one of a group of minute, usually microscopic, one-celled animals that move by vibrating filaments, such as the paramecium; ciliate. They occur in both free-living and parasitic forms. <DD><I>adj. </I> of or belonging to this group. </DL>
<A NAME="infuturo">
<B>in futuro,</B><DL COMPACT><DD> (Latin.) in the future. </DL>
<A NAME="ing">
<B>-ing</B> (1),<DL COMPACT><DD> (suffix forming nouns chiefly from verbs.) <DD><B> 1. </B>the act of a person or thing that ______s. <BR> <I>Ex. Painting = the act of one that paints.</I> <DD><B> 2. </B>the product or result of such an act, as in <I>a drawing, a painting.</I> <DD><B> 3. </B>a thing that ______s. <BR> <I>Ex. Lining = a thing that lines.</I> <DD><B> 4. </B>action, result, product, material, etc., of some other part of speech, as in <I>lobstering, offing, shirting, overcoating.</I> <DD><B> 5. </B>of those who ______. <BR> <I>Ex. Smoking habit = the habit of a person who smokes. Printing trade = the trade of persons who print.</I> </DL>
<A NAME="ing">
<B>-ing</B> (2),<DL COMPACT><DD><B> 1. </B>(suffix forming the present participle of verbs,) as in <I>going, talking, raining, staying.</I> <DD><B> 2. </B>(suffix forming adjectives from verbs.) that ______s. <BR> <I>Ex. Lasting happiness = happiness that lasts. Growing child = a child that grows.</I> </DL>
<A NAME="inga">
<B>inga, </B>noun.<DL COMPACT><DD> any one of a group of trees or shrubs of the pea family, native to South and Central America, having pinnate leaves and red or white flowers. </DL>
<A NAME="ingate">
<B>ingate, </B>noun.<DL COMPACT><DD><B> 1. </B>a way to go in; gate; entrance. <BR> <I>Ex. The speed of flow, particularly through the ingates, should be as low as possible (New Scientist).</I> <DD><B> 2. </B>the hole in a mold through which a metal is poured in casting; geat. </DL>
<A NAME="ingather">
<B>ingather, </B>transitive verb.<DL COMPACT><DD> to gather in; collect; bring in, as a harvest. noun <B>ingatherer.</B> </DL>
<A NAME="ingathering">
<B>ingathering, </B>noun, adjective.<DL COMPACT><DD><I>noun </I> <B>1. </B>a gathering together; collecting. <BR> <I>Ex. (Figurative.) Zionists desire the ingathering of exiled Jewish people in modern Israel.</I> <DD><B> 2. </B>that which is gathered in, such as a harvest; collection. <DD><I>adj. </I> gathering in; gathering together. <BR> <I>Ex. (Figurative.) the ingathering harvest of time.</I> </DL>
<B>ingenerate</B> (1), adjective, verb, <B>-ated,</B> <B>-ating.</B><DL COMPACT><DD><I>adj. </I> inborn; innate. <DD><I>v.t. </I> to generate within; engender; produce. <BR> <I>Ex. The Spirit of God must ingenerate in us a true humility (Jeremy Taylor).</I> noun <B>ingeneration.</B> </DL>
<A NAME="ingenerate">
<B>ingenerate</B> (2), adjective.<DL COMPACT><DD> not generated; unbegotten; self-existent. </DL>
<A NAME="ingenerosity">
<B>ingenerosity, </B>noun.<DL COMPACT><DD> lack of generosity; ungenerous behavior. </DL>
