synthetic resin synt·he·tic·resin uncommon noun 1. a resin having a polymeric structure; especially a resin in the raw state; used chiefly in plastics Synonymssynthetic resin Related words Broader terms resinpolymer Narrower terms acrylicpolyethyleneallyl resinurea-formaldehyde resinalkydphenolic resinepoxymelamine resin WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
