residuum
noun/rɪˈzɪdjuəm/
/rɪˈzɪdʒuəm/
(plural residua
(specialist)/rɪˈzɪdjuə/
/rɪˈzɪdjuə/
)- something that remains after a reaction or process has taken placeWord Originlate 17th cent.: from Latin, neuter of residuus ‘remaining’, from the verb residere.
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