atto

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atto

Quintillionth (10 to the -18th power). See attosecond and space/time.
References in periodicals archive ?
SH SH SH SHAT AT AT ATTE TE TE TERE RE RE RED SHATTERED Rhona and David.
Judith Sanders Competition Secretary, Cardiff Writers' Circle ON November 10, the Echo reported about who is worst at attending meetings with appropriate statistics ("The city councillors who are failing to attes nd meetings", November 10).