â¢ FUSION (noun) The noun FUSION has 7 senses: 1. an occurrence that involves the production of a union. 2. a nuclear reaction in which nuclei combine to form more massive nuclei with the simultaneous release of energy. 3. the state of being combined into one body. 4. the merging of adjacent sounds or syllables or words.
1 A new kind of online ad fraud â ad injection â is a growing threat for publishers and web users, ad fraud detection companies told the Wall Street Journal.  The practice goes like this: Fraudsters commandeer website visitors' browsers and fraudulently serve ads on publishers' websites.
The antidiuretic hormone (ADH) promotes the reabsorption of water from the tubular fluid in the collecting duct, the hydro-osmotic effect, and it does not exert a significant effect on the rate of Na + reabsorption.ractice Essentials. The syndrome of inappropriate antidiuretic hormone (ADH) secretion (SIADH) is defined by the hyponatremia and hypo-osmolality resulting from inappropriate, continued secretion or action of the hormone despite normal or increased plasma volume, which results in impaired water excretion.