See also: 剎那

Chinese edit

For pronunciation and definitions of – see 剎那 (“instant; moment; split-second”).
(This term is the simplified form of 剎那).

Japanese edit

Etymology 1 edit

Kanji in this term
Grade: S

Grade: S

From Middle Chinese 剎那 (MC tsrhaet na), a transliteration of Sanskrit क्षण (kṣaṇa).[1][2]

Originally a Buddhist term meaning the smallest possible moment in time: a split-second. Carries favorable connotations of "precious" from the Buddhist teaching that one should live well even in the shortest moment of time.

This reading is now archaic and is falling into disuse.

Pronunciation edit

Noun edit

(せち)() (sechina

  1. see setsuna below

Etymology 2 edit

Japanese Wikipedia has an article on:
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English Wikipedia has an article on:
Kanji in this term
Grade: S

Grade: S


Shift in pronunciation from sechina above, using the kan'yōon of setsu for the first kanji.[1]

This reading is now the most common.

Pronunciation edit

Noun edit

(せつ)() (setsuna

  1. an instant, a moment
  2. (Buddhism) the smallest unit of time, of varying lengths depending on tradition:
    1. roughly 0.11 seconds, defined as 1/65th of a 弾指 (danshi), where a danshi is 1/12,000th of a day or 7.2 seconds
    2. 0.002 seconds, defined as 1/60th of a (nen), where a nen is 1/60th of a 弾指 (danshi)
    3. 1/75th of a second, defined as 1/6,480,000th of a day
  3. (mathematics) by extension from the instant meaning, an extremely small number: 10-18, atto-
Derived terms edit

Proper noun edit

(せつ)() (Setsuna

  1. a female given name

References edit

  1. 1.0 1.1 Shōgaku Tosho (1988) 国語大辞典(新装版) [Unabridged Dictionary of Japanese (Revised Edition)] (in Japanese), Tōkyō: Shogakukan, →ISBN
  2. 2.0 2.1 Matsumura, Akira, editor (2006), 大辞林 (in Japanese), Third edition, Tōkyō: Sanseidō, →ISBN

Korean edit

Hanja in this term

Noun edit

刹那 (challa) (hangeul 찰나)

  1. Hanja form? of 찰나 (moment; instant).

Vietnamese edit

chữ Hán Nôm in this term

Noun edit


  1. chữ Hán form of sát na (split-second).