noun

• (organic chemistry, uncountable) The univalent radical CH₂=CH−, derived from ethylene.
• (countable) Any of various compounds and substances containing the vinyl radical, especially various tough, flexible, shiny plastics.
• (music, collectively, uncountable) Phonograph records as a medium.
  "Many DJs prefer vinyl to CDs."
• (music, countable) A phonograph record.
  "This is a tangible example of the net's natural flow toward improved environmental outcomes. Although some people lament the loss of flipping through CDs, or eight-tracks, or vinyls, there is a clear upside to dematerialization."

adj

• (chemistry) Containing the vinyl radical.
• (music) Pertaining to a phonograph record.
  "Dance, boogie wonderland / Sound fly through the night / I chase my vinyl dreams to boogie wonderland"