nonatmospheric
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nonatmospheric — [spelling only] … English World dictionary
nonatmospheric — adj. * * * … Universalium
nonatmospheric — adj … Useful english dictionary
dating — I In geology and archaeology, the process of determining an object s or event s place within a chronological scheme. Scientists may use either relative dating, in which items are sequenced on the basis of stratigraphic clues (see stratigraphy) or … Universalium