resin/ˈrezɪn; ?@ ˈrezn; `rɛzn/ n[C, U]1 sticky substance that oozes esp from fir and pine trees and is used in making varnish, medicine, etc 树脂（尤指冷杉树脂和松脂）.2 similar substance made synthetically, used as a plastic or in making plastics 合成树脂.
牛津英汉双解词典