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：ophio-, ophi-, ophid-, -ophis; -ophidio, -ophidia

【来源及含义】Greek: snake, snakelike, serpent

【相关词根词缀】 A cross reference of other word family units that are related directly, or indirectly, with: "snakes or other reptiles": angui-; coluber-; herpeto-; reptil-; sauro-.

【同源单词】Carphophis, Hydrophid, Hydrophis, ophic, ophicalcite, Ophicephalidae