词根词缀：chrono-, chron-

【来源及含义】Greek: time, times; sequence of times

【相关词根词缀】 Related "time" units: aevum, evum; archaeo-, archeo-; Calendars; horo-; pre-; Quotes: Time; tempo-.

【同源单词】achronism, algesichronometer, allochronic, allochronic speciation, anachronic, anachronism

词根词缀：heter-, hetero-

【来源及含义】Greek: different, other, another, unlike; irregular, abnormal

【相关描述】This Greek element forms many scientific and other terms, often in opposition to homo-. Sometimes it is also the antonym of auto-, homoeo-, iso-, ortho-, and syn-.

【相关词根词缀】 Inter-related cross references, directly or indirectly, involving word units meaning "another, other, different, alternating, varied, changing": ali-; allo-; alter-; allelo-; mut-; poikilo-; reciproc-; vari-.

【同源单词】heteracanth, heteracanthous, heteracmy, heteradelphus, heteradenic, heteralius