词根词缀：meso-, mes-, mesi-

【来源及含义】Greek: middle, intermediate; close to a center line; between

【同源单词】brachymesophalangia, circumesophagal, dolichoeuromesocephalus, mesencephalic, mesencephalon, mesencephalotomy

词根词缀：sphero-, spher-, -sphere-

【来源及含义】Greek: ball, round, around; globe, global; body of globular form; by extension, circular zone, circular area

【相关词根词缀】 Related ball, sphere-word units: glob-, glom-; hemoglobin-.

【同源单词】adminisphere, aerosphere, allobiosphere, anthroposphere, asphere, aspheric