根尖部

根的英语翻译：

base; cause; foot; origin; radix; root; source
【化】 radical
【医】 rad.; radical; radices; radix; rhizo-; root

尖的英语翻译：

needle; piercing; point; sharp; the best of its kind; tip; top
【医】 apex; apices; apico-; cusp; cuspis; mucro; point; puncta; punctum; tip

部的英语翻译：

ministry; office; part
【医】 board; department; loci; locus; pars; part; Partes; piece; portio
portiones; regio; region
【经】 ministry