Definition of darkside:
(n) :
(countable, figuratively) The side of something that is metaphorically dark, i.e. evil, distressing or otherwise undesirable; the negative aspect of something.
(n) :
(countable) The side of something that is in darkness or unlit, or has less illumination.
(n) :
(uncountable, music) A style of electronic music, being a form of hardcore characterized by discordant sounds.
(n) :
(countable, astronomy) Synonym of farside (“the side of a moon that faces away from the planet that it orbits”).
(n) :
(countable, astronomy) Synonym of nightside (“the side of a planet that faces away from the sun around which it orbits”).