词根词缀：hydro-, hydra-, hydr-, hyd-

【来源及含义】Greek: water

【相关词根词缀】 Cross references of word families that refer to "water": aqua-; hydat-; hygro-.

【同源单词】ahydrotaxis, anhydrase, anhydration, anhydride, anhydrobiosis, anhydrous

词根词缀：methyl-, methy-

【来源及含义】Greek: a combining form occurring in the names of chemical compounds in which the methyl group is present; alcohol, wine

【相关描述】A "univalent hydrocarbon radical," 1844, from German methyl (1840) or French méthyle, back-formation from French méthylène, coined in French (1835) from Greek methy, "wine" + hyle, "wood". The word was introduced by Swedish chemist Jöns Jakob Berzelius (1779-1848).

【同源单词】hydroxymethyl, methanol, methylal, methylamine, methylate, methylene