King's Kung-Fu& Tai Chi

Japanese symbol for “dilation”

Romaji: sandai
dilation (of the pupil)

In Japanese, dilation is , read (sandai).

Before using these characters for a tattoo, check them with a native speaker. Dictionary words often have several meanings, and the right choice depends on context.

Meanings

  1. n, vi, vs dilation (of the pupil) (physiol)

Kanji and stroke order

scatter, disperse, spend
on: サン
kun: ち.る、ち.らす、-ち.らす、ち.らかす
12 strokes · JLPT 2
large, big
on: ダイ、タイ
kun: おお-、おお.きい、-おお.いに
3 strokes · JLPT 4

Other Japanese words for “dilation”

WordReadingMeaning
ぼうちょうど bouchoudodilation (of a sound wave in acoustics)

Related words

Words that share a kanji.

WordReadingMeaning
かいさん kaisanbreaking up (a meeting, gathering, etc.); dispersal (e.g. of a crowd)
さんぽ sanpowalk; stroll
ぶんさん bunsandispersion; breakup; scattering
かくさん kakusanspreading; disseminating; scattering
さんざん sanzanthoroughly; completely; utterly
はっさん hassanemission; emanation; radiation
だいじょうぶ daijoubusafe; secure; sound
たいへん taihenvery; greatly; terribly

See also: Chinese symbol for “dilation”.

Data: JMdict (CC BY-SA 4.0); KANJIDIC2 (CC BY-SA 4.0); KanjiVG (CC BY-SA 3.0); wordfreq (CC BY-SA 4.0 (data)). Retrieved 2026-10-22.