ANGSTROM
\ˈaŋstɹɒm], \ˈaŋstɹɒm], \ˈa_ŋ_s_t_ɹ_ɒ_m]\
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a metric unit of length equal to one ten billionth of a meter (or 0.0001 micron); used to specify wavelengths of electromagnetic radiation
By Princeton University
Word of the day
dust storm
- a windstorm that lifts up clouds of dust or sand a windstorm that lifts up clouds dust or sand; "it was the kind of duster not experienced in years"