阿秒

āmiǎo
(physics) attosecond (10⁻¹⁸ s)

CEDICT

physics

Entry Composition

1 阿 ā
  1. prefix used before monosyllabic names, kinship terms etc to indicate familiarity
  2. used in transliteration
  3. also pr. à
2 秒 miǎo
  1. second (unit of time)
  2. arc second (angular measurement unit)
  3. (coll.) instantly