散大さんだい Noun Irregular Intransitive English jmdict 1 noun (common) (futsuumeishi) noun or participle which takes the aux. verb suru intransitive verb physiology dilation (of the pupil)
瞳孔散大どうこうさんだい Noun English jmdict 1 noun (common) (futsuumeishi) medicine pupil dilation;mydriasis See also: 散瞳 (さんどう)
Shirabe