①同时性，同步现象：同synchronism；②准时发生：身体各部分或组织在正常时间内形成。参见heterochronia- chronicity
- chroniosepsis
- chrono-
- chronobiologic,chronobiological
- chronobiologist
- chronobiology
- chronognosis
- chronograph
- chronometry
- chronomyometer
- chronon
- chronophobia
- chronophotograph
- chronoscope
- chronosphygmograph
- chronotaraxis
- chronotropic
- chronotropism
- chrotoplast
- chrysalis
- chrysarobin
- chrysazin
- chrysiasis
- chryso-
- chrysoderma