isoprenoid [ahy-suh-pree-noid] Word Origin adjective Chemistry.
- pertaining to, derived from, or similar to isoprene.
Origin of isoprenoid First recorded in 1955–60; isoprene + -oid isoprenoid in Medicine isoprenoid [ī′sə-prē′noid′] n.
- A polymer whose carbon skeleton consists wholly or partly of isoprene units joined end to end.