An estimated 5.5 million Americans of all ages have Alzheimer's disease. Of the estimated 5.5 million Americans living with Alzheimer's dementia in 2017, an estimated 5.3 million are age 65 and older and approximately 200,000 individuals are under age 65 and have younger-onset Alzheimer's. One in 10 people age 65 and older (10 percent) has Alzheimer's dementia.
Major dictionaries. The longest word in any of the major English language dictionaries is pneumonoultramicroscopicsilicovolcanoconiosis, a word that refers to a lung disease contracted from the inhalation of very fine silica particles, specifically from a volcano; medically, it is the same as silicosis.
  English dictionary entries claiming the title of longest English  word: The longest word in a standard English dictionary is the  45-letter  'pneumonoultramicroscopicsilicovolcanoconiosis'.  This word was concocted in 1935 by a fan of word games and puzzles,  using the lung disease, silicosis, as its  base.he longest word in the English language is: pneumonoultrmicroscopicsilicovolcanoconiosis. 6 people found this useful. Edit. Share to: 1  Blending Words: Common Examples Blending words is a natural part of any language as it evolves over time.