洪积世 hóngjīshì Pleistocene Origin Definitions Defs Strokes Stroke Words Sentences Sents 洪 hóng noun flood A large flow of water caused by heavy rain or melting snow积 積 jī verb to accumulate to amass; to store up; to gather over time世 shì noun era (bound form) an era; an age; a dynasty; (geology) an epoch