词根词缀：di-, dicho-, dich-

【来源及含义】Greek: number two; twice, divided, double; unalike; a number used as a prefix

【同源单词】diacanthous, diacid, diadelphous, dianthous, diarch, diarchy

词根词缀：tomo-,-tom, -toma, -tomic, -tomize, -tome, -tomical, -tomically, -tomist, -tomous, -tomy; -otomy

【来源及含义】Greek: cut, incision; section; more often used as a suffix

【相关词根词缀】 Related cutting-word units: cast-; castrat-; -cise, -cide; -ectomy; mutil-; put-; sec-, seg-; temno-; trunc-.

【同源单词】anatomy, atom, cephalotomy, cirsotomy, colostomy, computerized tomography