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Insoluble

/inˈsälyəbəl/ Adjective 1. That cannot be dissolved. (wiktionary.org) 2. That cannot be solved; insolvable. (wiktionary.org) 3. That cannot be explained; mysterious or inexplicable. (wiktionary.org) Word origin: From Latin insolubilis “that cannot be loosened,” from in– “not” + solubilis...

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Instinct

/ˈinstiNGkt/   Noun, pl. instincts 1. The inherent inclination of a living organism toward a particular complex behavior. (wikipedia.org) 2. A natural or inherent impulse or behaviour (wiktionary.org). 3. An intuitive reaction not based on rational conscious thought. (wiktionary.org) 4. An inborn pattern of behavior that is characteristic of a species and is often a response to specific environmental stimuli (thefreedictionary.com) 5. An innate, typically fixed pattern of behavior in animals in response to certain stimuli. (Google Dictionary) Syn: Innate behavior Word origin: From Latin instinctus “instigation, impulse,” noun use of past participle of instinguere “to incite, impel,” from in– “on” + stinguere “prick,...

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Insula

1. An oval region of the cerebral cortex overlying the extreme capsule, lateral to the lenticular nucleus, buried in the depth of the fissura lateralis cerebri (sylvian fissure). 2. A pyramid-shaped area of the brain within each cerebral hemisphere beneath parts of the frontal and temporal lobes. (medical-dictionary.thefreedictionary.com) Synonym: insular area, insular cortex, island of Reil. (biology-online.org) 3. A region of the brain deep in the cerebral cortex. (Google Dictionary) 4. Any circumscribed body or patch on the skin. (biology-online.org) Word origin: Latin word for...

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Insulate

/ˈins(y)əˌlāt/ Verb 1. To separate, detach, or isolate. (wiktionary.org) 2. To separate a body or material from others, eg. by non-conductors to prevent the transfer of electricity, heat, etc. (wiktionary.org) 3. Protect (something) by interposing material that prevents the loss of heat or the intrusion of sound. (Google Dictionary) 4. Prevent the passage of electricity to or from (something) by covering it in nonconducting material. (Google Dictionary) 5. Protect from the unpleasant effects or elements of something. (Google Dictionary) 6. Make (land) into an island. (Google Dictionary) Word origin: From Latin insulatus, from insula...

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Insulin

/ˈinsələn/ Noun 1. A peptide hormone, produced by beta cells of the pancreas, and is central to regulating carbohydrate and fat metabolism in the body. (wikipedia.org) 2. A polypeptide hormone secreted by the islets of Langerhans and functioning in the regulation of the metabolism of carbohydrates and fats, especially the conversion of glucose to glycogen, which lowers the blood glucose level. (thefreedictionary.com) 3. Any of various pharmaceutical preparations containing this hormone that are derived from the pancreas of certain animals or produced through genetic engineering and are used in the medical treatment and management of diabetes mellitus (type I). (thefreedictionary.com) 4. An animal-derived or synthetic form of this substance used to treat diabetes. (Google Dictionary) Word origin: Coined in English from Latin insula “island,” so called because the hormone is secreted by the islets of Langerhans in the...

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