词根词缀：helio-, heli-

【来源及含义】Greek: sun

【相关词根词缀】 Related "sun" word family: sol-.

【同源单词】anheliophile, anheliophily, aphelion, apheliotropic, apheliotropism, diaheliotropic

词根词缀：therap-

【来源及含义】Greek: heal, cure; treatment; service done to the sick, [a waiting on]

【同源单词】actinotherapy, actinotherapy, aerohydrotherapy, aeroionotherapy, aeropiesotherapy, aerotherapy

词根词缀：tra-, tract-, trac-, -tractive, -traction, -tracting, treat-, trai-

【来源及含义】Latin: drag, draw together; a drawing out or pulling

【同源单词】abstract, abstract, abstracted, abstractedly, abstractedness, abstraction