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  1. Dictionary
    painful
    /ˈpeɪnf(ʊ)l/

    adjective

    More definitions, origin and scrabble points

  2. 9 hours ago · Dissociative identity disorder is characterized by the presence of at least two distinct and relatively enduring personality states. [3][24](p331) The disorder is accompanied by memory gaps more severe than could be explained by ordinary forgetfulness. [3][24](p331)[25]

  3. en.wikipedia.org › wiki › ProteinProtein - Wikipedia

    1 day ago · A protein is a polyamide. Secondary structure: regularly repeating local structures stabilized by hydrogen bonds. The most common examples are the α-helix, β-sheet and turns. Because secondary structures are local, many regions of different secondary structure can be present in the same protein molecule.