resin
noun /ˈrezɪn/
/ˈrezn/
[countable, uncountable]- a sticky substance that is produced by some trees and is used in making varnish, medicine, etc.
树脂 - an artificial substance similar to resin, used in making plastics
合成树脂
词源late Middle English: from Latin resina; related to Greek rhētinē ‘pine resin’. Compare with rosin.