WordReference Random House Unabridged Dictionary of American English © 2026
res•in•oid
(rez′ə noid′),USA pronunciation adj.
n.
- Chemistryresinlike.
n.
- Chemistrya resinoid substance.
- Chemistrya resinous substance synthetically compounded.
- Chemistrya gum resin.
- resin + -oid 1820–30