词根词缀：branchio-, branchi-

【来源及含义】Greek: gills

【同源单词】abranchial, abranchiate, Branchiosaurus, calyptobranchiate, cryptobranchiate, inferobranchiate

词根词缀：infra-, infero-, infer-

【来源及含义】Latin: under, below, beneath

【同源单词】anteroinferior, inferior, inferiority, inferiorly, infernal, infernally