resinoid

noun

res·​in·​oid ˈre-zᵊn-ˌȯid 

: gum resin

Word History

First Known Use

1880, in the meaning defined above

Medical Definition

resinoid

noun

res·​in·​oid ˈrez-ᵊn-ˌȯid 

1

: a thermosetting synthetic resin

2

a

: any of a class of resinous preparations made by pouring a concentrated alcoholic extract of a drug into cold water and separating and drying the precipitate formed

b

: gum resin