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：rheo-, rhea-, rhe-, rhy-

【来源及含义】Greek: a flow, wave; current of a stream, current; electrical current

【同源单词】bioelectrorheology, electrorheological, electrorheologist, electrorheology, hemorheology, hydrorheostat