complication

plural complications

1. countableuncountableThe act or process of complicating.
2. countableuncountableThe state of being complicated; intricate or confused relation of parts; complexity.
3. countableuncountableA person who doesn't fit in with the main scheme of things; an interloper.
4. countableuncountablemedicineA disease or diseases, or adventitious circumstances or conditions, coexistent with and modifying a primary disease, but not necessarily connected with it.
5. countableuncountablehobbiesA feature beyond basic time display in a timepiece.

   In their final year, each student must make their own watch with a complication—from a tourbillon to a chiming mode to having a date display.

   2023 May 28, Brian Ng, “Is one of these students the next Breguet?”, in HTSI, London: The Financial Times Ltd., →ISSN, →OCLC, page 43

   1 more example

   Obsessed, he was after a watch that contained the greatest number of complications in the boldest combinations in the smallest space imaginable.

   2013, Stacy Perman, A Grand Complication: The Race to Build the World's Most Legendary Watch, Simon and Schuster, →ISBN, page 35

6. countableobsoleteuncountableA twisting or intertwining.

   the snaky complication in the Caduceus or rod of Hermes.

   1646, Thomas Browne, Pseudodoxia Epidemica