Last Updated
：2026/01/09
アト
Hiragana
あと
Prefix
morpheme
Japanese Meaning
アト：国際単位系(SI)接頭辞「atto-」に対応し、10のマイナス18乗（10⁻¹⁸）を表す。極めて小さい量を示すときに用いられる。
Easy Japanese Meaning
たんいのまえにつけて、とてもちいさいおおきさをしめす。10の18ぶんの1。
Chinese (Simplified) Meaning
（国际单位制前缀）阿托-，表示10^-18 / 表示极小数量级的前缀，符号a
Chinese (Traditional) Meaning
國際單位制前綴，表示10的負18次方 / 表示極微小量的前綴
Korean Meaning
국제단위계(SI) 접두사로, 10^-18(10의 -18제곱)을 뜻함 / 단위 앞에 붙어 기준의 10^-18배를 나타냄
Indonesian
prefiks SI yang menyatakan 10^-18 / sepuluh pangkat −18
Vietnamese Meaning
tiền tố (SI) chỉ 10^-18 / cực nhỏ, bằng một phần tỷ tỷ của đơn vị
Tagalog Meaning
panlaping SI na nangangahulugang 10^-18 / panlapi para sa napakaliit na sukat (10^-18)
Sense（1）
atto-
（ romanization ）
Quizzes for review
See correct answer
The phone rang a second later.
See correct answer
アト一秒で電話が鳴った。
Japanese - English
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