enigma

noun10

1. •
   Something or someone puzzling, mysterious or inexplicable.

   • I was, and still am, an enigma to myself. — 1894
2. •
   A riddle, or a difficult problem.

   • Some enigma, some riddle: come, thy l'envoy, begin. — 1598
3. •
   Riddles and puzzles, collectively.

   • From the beginning, readers of The Enigma of Arrival are likely to feel surrounded by enigma and puzzle. — 2000
4. •
   Mysteriousness; obscurity; a lack of clarity.

   • In those halcyon days I believed that the source of enigma was stupidity . — 1995
5. •
   Alternative letter-case form of Enigma.

   • This U-boat consistently used Norddeich or Kootwijk frequencies for her shadowing reports, all of which were in enigma. — 2002
6. •
   A style of literature characterized by obscurity and hints of transcendental meaning.

   • The interpretive effort elicited by enigma approaches an instant of transcendent understanding that has the force of revelation, yet without ever fully or permanently reaching it. — 2017
7. •
   A protein with three LIM domains (a conserved cysteine- and histidine-rich structure of two adjacent zinc fingers) at the C terminus that regulates protein phosphorylation.

   • Yeast two-hybrid screening revealed that enigma binds to the insulin receptor (InsR) internalization motif. — 2007
8. •
   The Talaud kingfisher, Todiramphus enigma.

   • As noted by Fry (1980), if both forms were shown to be resident and breeding on Talaud, enigma must be accorded specific status. — 1997
9. •
   Any member of the species Oedaleonotus enigma of grasshoppers.
10. •
    Any member of the species Heliothis enigma of rare moths.