Glossary · Nouns · I
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TermTypeDefinitionClassificationsUpdated
Investment TrustnounMWEa financial institution that sells shares to individuals and invests in securities issued by other companiesverified
Invidianounspite and resentment at seeing the success of another (personified as one of the deadly sins)verified
Invisible BalancenounMWEthe difference in value over a period of time of a country's imports and exports of services and payments of property incomesverified
Invitationnouna request (spoken or written) to participate or be present or take part in somethingverified
Involucrenouna highly conspicuous bract or bract pair or ring of bracts at the base of an inflorescenceverified
Involuntary MusclenounMWEa muscle that contracts without conscious control and found in walls of internal organs such as stomach and intestine and bladder and blood vessels (excluding the heart)verified
Involuntary TrustnounMWEa trust created by a court (regardless of the intent of the parties) to benefit a party that has been wrongfully deprived of its rightsverified
Involutionnounreduction in size of an organ or part (as in the return of the uterus to normal size after childbirth)verified
Inwardnessnounpreoccupation with what concerns human inner nature (especially ethical or ideological values)verified
Ion ExchangenounMWEa process in which ions are exchanged between a solution and an insoluble (usually resinous) solidverified
Ion PumpnounMWEa vacuum pump that removes gas by ionizing the atoms or molecules and adsorbing them on a metal surfaceverified
Ionic BondnounMWEa chemical bond in which one atom loses an electron to form a positive ion and the other atom gains an electron to form a negative ionverified
Ionic ChargenounMWEthe charge on an ion is equal to a constant charge e multiplied by an integer from 1 to 15verified
Ionic MedicationnounMWEtherapy that uses a local electric current to introduce the ions of a medicine into the tissuesverified
Ionisationnounthe condition of being dissociated into ions (as by heat or radiation or chemical reaction or electrical discharge)verified
Ionizationnounthe condition of being dissociated into ions (as by heat or radiation or chemical reaction or electrical discharge)verified
Ionization ChambernounMWEa measuring instrument that measures the amount of ionizing radiationverified
Ionizing RadiationnounMWEhigh-energy radiation capable of producing ionization in substances through which it passesverified
Ionophoresisnounthe motion of charged particles in a colloid under the influence of an electric fieldverified
Iontophoresisnountherapy that uses a local electric current to introduce the ions of a medicine into the tissuesverified
Iontotherapynountherapy that uses a local electric current to introduce the ions of a medicine into the tissuesverified
IP Authentication HeadernounMWEProtocol used to provide connectionless integrity and data origin authentication for IP datagrams (hereafter referred to as just integrity) and to provide protection against replays. (RFC 4302). Scope Note: AH ensures data integrity with a checksum that a message authentication code, such as MD5, generates. To ensure data origin authentication, AH includes a secret shared key in the algorithm that it uses for authentication. To ensure replay protection, AH uses a sequence number field within the IP authentication header.Network
IP FloodnounMWEA denial of service attack that sends a host more echo request ("ping") packets than the protocol implementation can handle.Threat
IP ForwardingnounMWEIP forwarding is an Operating System option that allows a host to act as a router. A system that has more than 1 network interface card must have IP forwarding turned on in order for the system to be able to act as a router.Capability
IP SecuritynounMWESuite of protocols for securing Internet Protocol (IP) communications at the network layer, layer 3 of the OSI model by authenticating and/or encrypting each IP packet in a data stream. IPsec also includes protocols for cryptographic key establishment.Network
Ipecacnouna medicinal drug used to evoke vomiting (especially in cases of drug overdose or poisoning)verified
Iranounbelligerence aroused by a real or supposed wrong (personified as one of the deadly sins)verified
Irenounbelligerence aroused by a real or supposed wrong (personified as one of the deadly sins)verified
Iridectomynounan eye operation that treats closed-angle glaucoma by surgical removal of part of the iris of the eyeverified
Iridescencenounthe visual property of something having a milky brightness and a play of colors from the surfaceverified
Iridosminenouna hard and corrosion resistant mineral that is a natural alloy of osmium and iridium (usually containing small amounts of rhodium and platinum)verified
Iridotomynouna surgical procedure that makes an incision in the iris of the eye in order to enlarge the pupil or to treat closed-angle glaucomaverified
Irisnounplants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepalsverified
Iris DiaphragmnounMWEdiaphragm consisting of thin overlapping plates that can be adjusted to change the diameter of a central openingverified
Iris FamilynounMWElarge family of usually perennial geophytic herbs with rhizomes or corms or bulbsverified