resins

/R EH1 Z AH0 N Z/
noun
  1. 1

    A viscous hydrocarbon secretion of many plants, particularly coniferous trees.

  2. 2

    Any of various yellowish viscous liquids or soft solids of plant origin; used in lacquers, varnishes and many other applications; chemically they are mostly hydrocarbons, often polycyclic.

  3. 3

    Any synthetic compound of similar properties.

Source: https://en.wiktionary.org/wiki/resin, https://en.wiktionary.org/wiki/resins